<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.4 20241031//EN" "JATS-journalpublishing1-4.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article" dtd-version="1.4" xml:lang="en">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">ojog</journal-id>
      <journal-title-group>
        <journal-title>Open Journal of Obstetrics and Gynecology</journal-title>
      </journal-title-group>
      <issn pub-type="epub">2160-8806</issn>
      <issn pub-type="ppub">2160-8792</issn>
      <publisher>
        <publisher-name>Scientific Research Publishing</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.4236/ojog.2026.162026</article-id>
      <article-id pub-id-type="publisher-id">ojog-149349</article-id>
      <article-categories>
        <subj-group>
          <subject>Article</subject>
        </subj-group>
        <subj-group>
          <subject>Medicine</subject>
          <subject>Healthcare</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Epidemiological, Clinical and Paraclinical Aspects of Couple Infertility at the Ebolowa Regional Hospital Center</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="western">
            <surname>Yannick</surname>
            <given-names>Messakop Moayeth</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Marc</surname>
            <given-names>Njemba Medou Jean</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Veronique</surname>
            <given-names>Mboua Ndenga</given-names>
          </name>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Ulrich</surname>
            <given-names>Bisay Souhe</given-names>
          </name>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Lydienne</surname>
            <given-names>Bilo’o Leslie</given-names>
          </name>
          <xref ref-type="aff" rid="aff3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Annick</surname>
            <given-names>Edzimbi</given-names>
          </name>
          <xref ref-type="aff" rid="aff4">4</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Flaure</surname>
            <given-names>Aboui</given-names>
          </name>
          <xref ref-type="aff" rid="aff4">4</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Raihanatou</surname>
            <given-names>Hirzel</given-names>
          </name>
          <xref ref-type="aff" rid="aff4">4</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Huguette</surname>
            <given-names>Atangana Ekobo</given-names>
          </name>
          <xref ref-type="aff" rid="aff5">5</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Rody</surname>
            <given-names>Bengono</given-names>
          </name>
          <xref ref-type="aff" rid="aff3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Pascal</surname>
            <given-names>Foumane</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Michel</surname>
            <given-names>Ekono Guy</given-names>
          </name>
          <xref ref-type="aff" rid="aff6">6</xref>
        </contrib>
      </contrib-group>
      <aff id="aff1"><label>1</label> Department of Gynecology and Human Reproduction, FMPS University of Ebolowa, Ebolowa, Cameroon </aff>
      <aff id="aff2"><label>2</label> Department of Surgery and Specialties, FMPS University of Ebolowa, Ebolowa, Cameroon </aff>
      <aff id="aff3"><label>3</label> Department of Paediatrics, FMPS University of Ebolowa, Ebolowa, Cameroon </aff>
      <aff id="aff4"><label>4</label> Department of Biomedical Sciences, FS University of Ebolowa, Ebolowa, Cameroon </aff>
      <aff id="aff5"><label>5</label> Department of Internal Medicine, FMPS University of Ebolowa, Ebolowa, Cameroon </aff>
      <aff id="aff6"><label>6</label> Department of Gynecology, FMPS University of Douala, Douala, Cameroon </aff>
      <author-notes>
        <fn fn-type="conflict" id="fn-conflict">
          <p>The authors declare no conflict of interest.</p>
        </fn>
      </author-notes>
      <pub-date pub-type="epub">
        <day>02</day>
        <month>02</month>
        <year>2026</year>
      </pub-date>
      <pub-date pub-type="collection">
        <month>02</month>
        <year>2026</year>
      </pub-date>
      <volume>16</volume>
      <issue>02</issue>
      <fpage>246</fpage>
      <lpage>257</lpage>
      <history>
        <date date-type="received">
          <day>03</day>
          <month>01</month>
          <year>2026</year>
        </date>
        <date date-type="accepted">
          <day>31</day>
          <month>01</month>
          <year>2026</year>
        </date>
        <date date-type="published">
          <day>03</day>
          <month>02</month>
          <year>2026</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© 2026 by the authors and Scientific Research Publishing Inc.</copyright-statement>
        <copyright-year>2026</copyright-year>
        <license license-type="open-access">
          <license-p> This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link> ). </license-p>
        </license>
      </permissions>
      <self-uri content-type="doi" xlink:href="https://doi.org/10.4236/ojog.2026.162026">https://doi.org/10.4236/ojog.2026.162026</self-uri>
      <abstract>
        <p><bold>Background</bold><bold>:</bold>Couple infertility represents a growing public health challenge with profound psychological, social, and cultural implications, particularly in low- and middle-income countries. In Cameroon, data remain limited in several regions, including the South. This study aimed to characterize the epidemiological and clinical profile of couple infertility at the Ebolowa Regional Hospital Center (ERHC), thereby contributing context-specific evidence to guide clinical practice and public health interventions. <bold>Methods</bold><bold>:</bold>A descriptive cross-sectional study with retrospective data collection was conducted in the Department of Gynecology and Obstetrics of ERHC from September 22, 2022, to September 22, 2023. Medical records of couples consulting for infertility and meeting World Health Organization diagnostic criteria were included. Sociodemographic, clinical, biological, and radiological data were extracted using a standardized pretested form and analyzed descriptively using Microsoft Excel 2010. <bold>Results</bold><bold>:</bold>Among 1850 gynecological consultations, 262 were related to couple infertility, yielding a prevalence of 14.16%. Women had a mean age of 28.6 years, with the 26 - 30 age group most represented (32.1%). Male partner involvement in diagnostic evaluation was observed in 55% of cases. Most women were formally employed (67.9%) and living in cohabitation (44.3%). The mean frequency of sexual intercourse was 3.7 times per week, predominantly 3 - 4 times weekly (54.2%). A documented history of <italic>Chlamydia trachomatis</italic> infection was found in 41.2% of women. Primary infertility accounted for 64.1% of cases. Female factors were the leading cause of infertility (47%), mainly due to tubal obstruction (56.5%), uterine fibroids (24.4%), and polycystic ovary syndrome (15.3%). Male factors contributed to 32% of cases, with teratozoospermia (13.9%) and oligoasthenozoospermia (11.8%) being the most frequent abnormalities. Couple infertility is a major reproductive health concern worldwide, particularly in low- and middle-income countries where its psychosocial and societal impact is substantial. In Cameroon, regional data remain scarce, especially in the South Region. This study aimed to describe the epidemiological and clinical characteristics of couple infertility at the Ebolowa Regional Hospital (ERHC). <bold>Conclusion</bold><bold>:</bold>Couple infertility constitutes a substantial proportion of gynecological consultations at ERHC, with a predominance of primary infertility and female etiologies, particularly tubal damage likely related to sexually transmitted infections. Limited male participation may lead to underestimation of male infertility. These findings underscore the urgent need to strengthen STI prevention and early treatment, promote timely referral to specialized care, and enhance male involvement in infertility evaluation to reduce the burden of infertility in Southern Cameroon.</p>
      </abstract>
      <kwd-group kwd-group-type="author-generated" xml:lang="en">
        <kwd>Couple Infertility</kwd>
        <kwd>Epidemiology</kwd>
        <kwd>Clinical Characteristics</kwd>
        <kwd>Etiologies</kwd>
        <kwd>Ebolowa</kwd>
        <kwd>Cameroon</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec1">
      <title>1. Introduction</title>
      <p>The ability to conceive and bear children is widely regarded as a fundamental aspect of human life and family stability [<xref ref-type="bibr" rid="B1">1</xref>]. When this ability is compromised, infertility often becomes a source of profound psychological distress, marital tension, social stigma, and emotional suffering, particularly in societies where fertility is highly valued [<xref ref-type="bibr" rid="B1">1</xref>]. As such, couple infertility extends beyond a purely medical condition to constitute a significant public health and social challenge [<xref ref-type="bibr" rid="B1">1</xref>]-[<xref ref-type="bibr" rid="B8">8</xref>].</p>
      <p>The World Health Organization (WHO) defines couple infertility as the failure to achieve pregnancy after 1 year of having regular, unprotected intercourse, or after 6 months if the woman is older than 35 years of age [<xref ref-type="bibr" rid="B1">1</xref>]. While approximately 80% of pregnancies occur within the first six cycles of attempting conception, fertility declines progressively thereafter, and the probability of spontaneous conception becomes markedly low after two years [<xref ref-type="bibr" rid="B2">2</xref>]. Globally, infertility affects an estimated 60 to 180 million couples of reproductive age, with substantial disparities in prevalence and causes between regions [<xref ref-type="bibr" rid="B1">1</xref>].</p>
      <p>The likelihood of conception per menstrual cycle is estimated at nearly 25% at the age of 20 years and declines steadily with advancing age [<xref ref-type="bibr" rid="B1">1</xref>][<xref ref-type="bibr" rid="B3">3</xref>]. Etiologically, infertility is attributed to female factors in approximately 30% of cases, male factors in 20%, combined male and female factors in 30%, while remaining unexplained in about 10% of couples [<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B9">9</xref>]. These proportions, however, vary considerably depending on geographical location, socioeconomic context, access to healthcare, and prevalence of reproductive tract infections [<xref ref-type="bibr" rid="B10">10</xref>]-[<xref ref-type="bibr" rid="B20">20</xref>].</p>
      <p>In sub-Saharan Africa, infertility represents a particularly sensitive issue due to its social consequences, including stigmatization, marital instability, and economic vulnerability, especially for women [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B7">7</xref>][<xref ref-type="bibr" rid="B8">8</xref>]. The burden of infertility in this region is closely linked to preventable causes such as sexually transmitted infections, unsafe abortions, and poorly managed obstetric complications, which frequently result in tubal damage and secondary infertility [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B7">7</xref>][<xref ref-type="bibr" rid="B8">8</xref>][<xref ref-type="bibr" rid="B13">13</xref>]-[<xref ref-type="bibr" rid="B15">15</xref>]. </p>
      <p>In Cameroon, several hospital-based studies conducted in Yaoundé, Douala, and the Western Region have documented the epidemiological and etiological profiles of infertile couples [<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B8">8</xref>][<xref ref-type="bibr" rid="B14">14</xref>][<xref ref-type="bibr" rid="B15">15</xref>][<xref ref-type="bibr" rid="B20">20</xref>]. These studies consistently report a predominance of female causes, notably tubal pathology, as well as a non-negligible contribution of male factors. However, despite these efforts, data remain scarce for the South Region of Cameroon, and particularly for the city of Ebolowa, where sociocultural characteristics, healthcare access, and disease patterns may differ from those of larger urban centers.</p>
      <p>A better understanding of the local epidemiological and clinical characteristics of infertility is essential for improving diagnostic strategies, optimizing management, and implementing effective preventive measures tailored to the regional context. It is within this framework that the present study was conducted.</p>
      <p>The objective of this study was to describe the epidemiological, clinical, biological, and radiological characteristics of infertile couples consulting at the Ebolowa Regional Hospital and to identify the main etiological factors associated with infertility in this setting.</p>
    </sec>
    <sec id="sec2">
      <title>2. Methods</title>
      <sec id="sec2dot1">
        <title>2.1. Study Design and Setting</title>
        <p>This was a descriptive cross-sectional study with retrospective data collection conducted in the Department of Gynecology and Obstetrics of the Ebolowa Regional Hospital Center, a referral facility in the South Region of Cameroon. The study period extended from September 22, 2022, to September 22, 2023.</p>
      </sec>
      <sec id="sec2dot2">
        <title>2.2. Study Population</title>
        <p>The study population included all couples consulting for infertility at ERH during the study period.</p>
      </sec>
      <sec id="sec2dot3">
        <title>2.3. Inclusion and Exclusion Criteria</title>
        <p>Included were medical records of couples consulting for conception desire in whom a diagnosis of couple infertility was established according to WHO criteria and whose records were complete for key study variables.</p>
        <p>Excluded were couples consulting outside the study period, those without usable medical records, and incomplete files lacking essential variables (age, infertility type, main etiology).</p>
      </sec>
      <sec id="sec2dot4">
        <title>2.4. Sampling Method</title>
        <p>A non-probability convenience sampling method was used. All eligible records during the study period were included.</p>
      </sec>
      <sec id="sec2dot5">
        <title>2.5. Data Collection and Analysis</title>
        <p>Data were collected using a pretested standardized form and analyzed using Microsoft Excel 2010. Couple’s clinical and paraclinical data were collected from patient file where the diagnosis of tubal obstruction was done by a hysterosalpingography and the diagnosis of <italic>Chlamydia trachomatis</italic> was done by serology. All other diagnosed male or female abnormalities respected standard procedures.</p>
        <p>Descriptive statistics were used, including means, standard deviations, and proportions. Results are presented in tables and figures.</p>
      </sec>
      <sec id="sec2dot6">
        <title>2.6. Ethical Considerations</title>
        <p>Confidentiality and anonymity were strictly maintained. Authorization was obtained from the Head of the Department of Gynecology and Obstetrics prior to data collection.</p>
      </sec>
    </sec>
    <sec id="sec3">
      <title>3. Results</title>
      <sec id="sec3dot1">
        <title>3.1. Frequency of Couple Infertility</title>
        <p>During the study period, a total of 1850 gynecological consultations were recorded at the Ebolowa Regional Hospital. Among these, 262 consultations involved couples evaluated for infertility, corresponding to a prevalence of 14.16% among gynecological consultations.</p>
        <p>Male partner participation in the diagnostic process was observed in 144 cases (55%), while 45% of male partners did not attend the proposed investigations.</p>
      </sec>
      <sec id="sec3dot2">
        <title>3.2. Sociodemographic Characteristics of the Couples (Table 1)</title>
        <p>Among women, age ranged from 16 to 45 years, with a mean age of 28.6 ± 4 years. The most represented age group was 26 - 30 years, accounting for 32.1% (84/262) of cases. Among men, ages ranged from 26 to 60 years, with a mean age of 34.5 ± 7 years. The 31 - 35-year age group was the most frequent (31.4%; 44/144).</p>
        <p>The majority of women (67.9%; 178/262) and men (53.4%; 140/144) were employed in the formal sector. Unemployment was reported among 28.2% (74/262) of women.</p>
        <p>Regarding marital status, 44.3% (116/262) of women were living in cohabitation, 38.2% (100/262) were married, and 17.6% (46/262) were single. Among men, 51% (73/144) were cohabiting, 38% (55/144) were married, and 11% (16/144) were single.</p>
        <p><bold>Table 1.</bold> Sociodemographic characteristic of infertile couples at the ERHC (n = 262 women, n = 144 men).</p>
        <table-wrap id="tbl1">
          <label>Table 1</label>
          <table>
            <tbody>
              <tr>
                <td>
                  <bold>Variable</bold>
                </td>
                <td>
                  <bold>Category</bold>
                </td>
                <td>
                  <bold>Women n (%)</bold>
                </td>
                <td>
                  <bold>Men n (%)</bold>
                </td>
              </tr>
              <tr>
                <td>
                  <bold>Age (years)</bold>
                </td>
                <td>Mean ± SD</td>
                <td>28.6 ± 4</td>
                <td>34.5 ± 7</td>
              </tr>
              <tr>
                <td rowspan="4">
                  <bold>Age group (years)</bold>
                </td>
                <td>16 - 25</td>
                <td>68 (25.9%)</td>
                <td>28 (19.4%)</td>
              </tr>
              <tr>
                <td>26 - 30</td>
                <td>84 (32.1%)</td>
                <td>44 (31.4%)</td>
              </tr>
              <tr>
                <td>31 - 35</td>
                <td>60 (22.9%)</td>
                <td>38 (26.4%)</td>
              </tr>
              <tr>
                <td>&gt;35</td>
                <td>50 (19.1%)</td>
                <td>34 (23.6%)</td>
              </tr>
              <tr>
                <td rowspan="3">
                  <bold>Marital status</bold>
                </td>
                <td>Single</td>
                <td>46 (17.6%)</td>
                <td>16 (11.1%)</td>
              </tr>
              <tr>
                <td>Married</td>
                <td>100 (38.2%)</td>
                <td>55 (38.2%)</td>
              </tr>
              <tr>
                <td>Cohabiting</td>
                <td>116 (44.3%)</td>
                <td>73 (50.7%)</td>
              </tr>
              <tr>
                <td rowspan="2">
                  <bold>Occupation</bold>
                </td>
                <td>Formal employment</td>
                <td>178 (67.9%)</td>
                <td>77 (53.4%)</td>
              </tr>
              <tr>
                <td>Informal/unemployed</td>
                <td>74 (28.2%)</td>
                <td>67 (46.6%)</td>
              </tr>
            </tbody>
          </table>
        </table-wrap>
      </sec>
      <sec id="sec3dot3">
        <title>3.3. Clinical and Paraclinical Characteristics of Female Partners (Table 2)</title>
        <p>The mean duration of the desire to conceive was 3.70 years. The mean number of sexual intercourses per week was 3.7, with 54.2% (142/262) of couples reporting 3 - 4 intercourses per week.</p>
        <p><bold>Table 2</bold><bold>.</bold> Clinical and paraclinical characteristics of female partners suffering from couple infertility at the ERHC (n = 262).</p>
        <table-wrap id="tbl2">
          <label>Table 2</label>
          <table>
            <tbody>
              <tr>
                <td>
                  <bold>Variable</bold>
                </td>
                <td>
                  <bold>Mean ± SD</bold>
                  <bold>/</bold>
                  <bold>n (%)</bold>
                </td>
              </tr>
              <tr>
                <td>
                  <bold>Age at first sexual intercourse (years)</bold>
                </td>
                <td>17.3 ± 2.1</td>
              </tr>
              <tr>
                <td>
                  <bold>Duration of desire to conceive (years)</bold>
                </td>
                <td>3.7 ± 1.8</td>
              </tr>
              <tr>
                <td>
                  <bold>Sexual frequency (times/week)</bold>
                </td>
                <td>3.7 ± 1.2 (3 - 4 times: 142, 54.2%)</td>
              </tr>
              <tr>
                <td rowspan="3">
                  <bold>History of sexually transmitted</bold>
                  <bold>infections</bold>
                </td>
                <td>Chlamydia trachomatis: 108 (41.2%)</td>
              </tr>
              <tr>
                <td>Mycoplasma: 48 (18.3%)</td>
              </tr>
              <tr>
                <td>Neisseria gonorrhoeae: 8 (3.1%)</td>
              </tr>
              <tr>
                <td rowspan="2">
                  <bold>Type of infertility</bold>
                </td>
                <td>Primary: 168 (64.1%)</td>
              </tr>
              <tr>
                <td>Secondary: 94 (35.9%)</td>
              </tr>
              <tr>
                <td rowspan="6">
                  <bold>Female infertility etiologies</bold>
                </td>
                <td>Tubal obstruction: 148 (56.5%)</td>
              </tr>
              <tr>
                <td>Uterine fibroids: 64 (24.4%)</td>
              </tr>
              <tr>
                <td>Polycystic ovary syndrome (PCOS): 40 (15.3%)</td>
              </tr>
              <tr>
                <td>Ovarian reserve depletion: 28 (10.3%)</td>
              </tr>
              <tr>
                <td>Endometriosis: 6 (2.3%)</td>
              </tr>
              <tr>
                <td>Uterine synechia: 6 (2.3%)</td>
              </tr>
            </tbody>
          </table>
        </table-wrap>
        <p>The mean age at first sexual intercourse among women was 17.34 years.</p>
        <p>A history of sexually transmitted infections was frequently documented. Chlamydia trachomatis infection was identified in 41.2% (108/262) of women, Mycoplasma infection in 18.3% (48/262), and Neisseria gonorrhoeae infection in 3.1% (8/262).</p>
        <p>Primary infertility accounted for 64.1% (168/262) of cases, while 35.9% (94/262) presented with secondary infertility.</p>
        <p>Female etiologies of infertility were dominated by tubal obstruction, observed in 56.5% (148/262) of cases, followed by uterine fibroids in 24.4% (64/262) and polycystic ovary syndrome in 15.3%.</p>
      </sec>
      <sec id="sec3dot4">
        <title>3.4. Clinical and Paraclinical Characteristics of Male Partners (Table 3)</title>
        <p>Among the 144 male partners who participated in the evaluation, 77.8% (112/144) underwent semen analysis and spermocytogram, while 61.1% (88/144) had a sperm culture performed. Testicular ultrasound was conducted in 31.6% (46/144) of cases, revealing a limited number of varicocele diagnoses.</p>
        <p>The most frequent sperm abnormalities were teratozoospermia in 13.9% (20/144) of cases and oligoasthenozoospermia in 11.8% (17/144).</p>
        <p><bold>Table 3</bold><bold>.</bold> Clinical and paraclinical characteristics of male partners suffering from couple infertility at the ERHC (n = 144).</p>
        <table-wrap id="tbl3">
          <label>Table 3</label>
          <table>
            <tbody>
              <tr>
                <td>
                  <bold>Variable</bold>
                </td>
                <td>
                  <bold>Mean ± SD</bold>
                  <bold>/</bold>
                  <bold>n (%)</bold>
                </td>
              </tr>
              <tr>
                <td>
                  <bold>Participation in evaluation</bold>
                </td>
                <td>144 (55% of total couples)</td>
              </tr>
              <tr>
                <td>
                  <bold>Semen analysis/</bold>
                  <bold>spermogram</bold>
                </td>
                <td>112 (77.8%)</td>
              </tr>
              <tr>
                <td>
                  <bold>Sperm culture</bold>
                </td>
                <td>88 (61.1%)</td>
              </tr>
              <tr>
                <td>
                  <bold>Testicular ultrasound</bold>
                </td>
                <td>46 (31.9%)</td>
              </tr>
              <tr>
                <td>
                  <bold>Hormonal workups</bold>
                </td>
                <td>0 (0%)</td>
              </tr>
              <tr>
                <td rowspan="5">
                  <bold>Sperm abnormalities</bold>
                </td>
                <td>Teratozoospermia: 20 (13.9%)</td>
              </tr>
              <tr>
                <td>Oligoasthenozoospermia: 17 (11.8%)</td>
              </tr>
              <tr>
                <td>Asthenospermia: 9 (6.25%)</td>
              </tr>
              <tr>
                <td>Necrospermia: 8 (5.6%)</td>
              </tr>
              <tr>
                <td>Oligo-astheno-teratospermia: 6 (4.2%)</td>
              </tr>
              <tr>
                <td rowspan="3">
                  <bold>Ultrasound abnormalities</bold>
                </td>
                <td>Normal: 12 (8.3%)</td>
              </tr>
              <tr>
                <td>Varicocele: 8 (5.6%)</td>
              </tr>
              <tr>
                <td>Other: 26 (18%)</td>
              </tr>
              <tr>
                <td>
                  <bold>Overall male factor infertility</bold>
                </td>
                <td>46 (32% of evaluated partners)</td>
              </tr>
            </tbody>
          </table>
        </table-wrap>
      </sec>
      <sec id="sec3dot5">
        <title>
          3.5. Etiological Distribution of Couple Infertility (
          <xref ref-type="fig" rid="fig1">Figure 1</xref>
          )
        </title>
        <p>Based on the combined results of female and male investigations, infertility was attributed to a female factor in 47% of couples, a male factor in 32%, and mixed causes in 21% of cases.</p>
        <fig id="fig1">
          <label>Figure 1</label>
          <graphic xlink:href="https://html.scirp.org/file/1433920-rId15.jpeg?20260203113127" />
        </fig>
        <p><bold>Figure 1</bold><bold>.</bold> Origine of couple infertility at the ERHC.</p>
      </sec>
    </sec>
    <sec id="sec4">
      <title>4. Discussion</title>
      <p>This study provides an updated overview of the epidemiological and clinical profile of couple infertility in a regional referral hospital in southern Cameroon. The observed prevalence, patterns of infertility, and etiological distribution offer important insights into the local determinants of infertility and align with trends reported in sub-Saharan Africa, while also highlighting specific contextual challenges.</p>
      <sec id="sec4dot1">
        <title>4.1. Magnitude of Couple Infertility</title>
        <p>Couple infertility accounted for <bold>14.16%</bold> of gynecological consultations at the Ebolowa Regional Hospital Center. This proportion confirms that infertility represents a substantial reason for gynecological consultation in this setting. Comparable frequencies have been reported in several African studies, including those from Mali, Nigeria, and Central Africa, with reported prevalences ranging from 12% to over 20% [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B7">7</xref>]. Variations across studies may reflect differences in study design, population characteristics, access to specialized care, and sociocultural perceptions surrounding infertility.</p>
        <p>The relatively high frequency observed in our study may also be explained by the hospital’s role as a regional referral center, where couples with prolonged infertility are more likely to seek specialized evaluation.</p>
      </sec>
      <sec id="sec4dot2">
        <title>4.2. Sociodemographic Profile of Infertile Couples</title>
        <p>The mean age of women (28.6 ± 4 years), with a predominance of the 26 - 30-year age group, is consistent with findings from other African series [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B7">7</xref>][<xref ref-type="bibr" rid="B8">8</xref>][<xref ref-type="bibr" rid="B13">13</xref>]-[<xref ref-type="bibr" rid="B15">15</xref>]. This age range corresponds to the period of optimal biological fertility, which likely explains the increased motivation to seek medical assistance when conception does not occur. Similarly, the most represented age group among men (31 - 35 years) reflects the common age gap between partners and has been reported in several comparable studies [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B7">7</xref>].</p>
        <p>A notable finding is the high proportion of women engaged in formal employment and the predominance of cohabitation rather than formal marriage. Unlike settings where cultural or religious norms strongly link procreation to marriage, the sociocultural context of southern Cameroon allows greater acceptance of cohabitation, which may facilitate earlier presentation to health facilities for fertility concerns. These patterns contrast with studies conducted in predominantly Muslim or more traditional settings, where marriage is almost universal among couples seeking infertility care [<xref ref-type="bibr" rid="B16">16</xref>].</p>
      </sec>
      <sec id="sec4dot3">
        <title>4.3. Duration of Infertility and Sexual Activity</title>
        <p>The mean duration of the desire to conceive (3.70 years) suggests that many couples delay seeking medical evaluation despite prolonged exposure to pregnancy risk. However, this duration remains slightly shorter than that reported in some Cameroonian studies [<xref ref-type="bibr" rid="B15">15</xref>], possibly indicating improved awareness or accessibility of reproductive health services in the region.</p>
        <p>The reported frequency of sexual intercourse (approximately 3 - 4 times per week) is within the range considered adequate for natural conception, suggesting that infertility in this population is unlikely to be primarily related to insufficient sexual exposure. This finding supports the relevance of underlying biological and pathological factors.</p>
      </sec>
      <sec id="sec4dot4">
        <title>4.4. Type of Infertility</title>
        <p>Primary infertility predominated in this study, accounting for nearly two-thirds of cases. This pattern is consistent with several African studies [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B7">7</xref>], although contrasts with others where secondary infertility is more frequent, particularly in settings with high rates of obstetric complications, unsafe abortions, or untreated reproductive tract infections [<xref ref-type="bibr" rid="B7">7</xref>][<xref ref-type="bibr" rid="B13">13</xref>]. Differences in reproductive history, health-seeking behavior, and access to obstetric care may explain these discrepancies.</p>
      </sec>
      <sec id="sec4dot5">
        <title>4.5. Female Etiologies of Infertility</title>
        <p>Female factors were the leading contributors to couple infertility in this study, accounting for <bold>47%</bold> of cases. Among these, <bold>tubal obstruction</bold> was by far the most frequent etiology. This predominance is in line with numerous African reports and strongly correlates with the high prevalence of previous sexually transmitted infections, particularly <italic>Chlamydia trachomatis</italic> infection, identified in more than 40% of women in our cohort [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B7">7</xref>][<xref ref-type="bibr" rid="B8">8</xref>]. </p>
        <p>Uterine fibroids and polycystic ovary syndrome were also common findings, reflecting the growing burden of non-communicable gynecological conditions in African urban populations. The relative contribution of these etiologies varies widely across studies, depending on diagnostic capacity and population characteristics. Nonetheless, the central role of tubal pathology underscores the need for strengthened prevention, early diagnosis, and prompt treatment of sexually transmitted infections.</p>
      </sec>
      <sec id="sec4dot6">
        <title>4.6. Male Factors and Partner Participation</title>
        <p>Male factors accounted for <bold>32%</bold> of infertility cases, with sperm abnormalities such as teratozoospermia and oligoasthenozoospermia being the most frequently identified. This distribution is consistent with international literature, which recognizes sperm abnormalities as the leading causes of male infertility [<xref ref-type="bibr" rid="B19">19</xref>][<xref ref-type="bibr" rid="B20">20</xref>].</p>
        <p>However, the true contribution of male factors may be underestimated in this study, given that only <bold>55%</bold> of male partners participated in the diagnostic process. Cultural perceptions, stigma, and reluctance to undergo fertility evaluation remain major barriers to male involvement in infertility care in many African settings. Similar challenges have been described in studies from Cameroon and Mali. [<xref ref-type="bibr" rid="B2">2</xref>][<xref ref-type="bibr" rid="B5">5</xref>][<xref ref-type="bibr" rid="B8">8</xref>].</p>
      </sec>
      <sec id="sec4dot7">
        <title>4.7. Etiological Distribution and Clinical Implications</title>
        <p>The presence of mixed infertility in <bold>21%</bold> of couples highlights the multifactorial nature of infertility and reinforces the importance of a comprehensive, couple-centered approach to evaluation and management. Focusing exclusively on one partner risks overlooking contributory factors and delaying appropriate treatment.</p>
      </sec>
    </sec>
    <sec id="sec5">
      <title>5. Study Limitations</title>
      <p>The limitations of this study include its retrospective design, reliance on medical records, and the single-center setting, which may limit generalizability. In addition, incomplete male participation and the absence of advanced diagnostic techniques may have led to underestimation of certain etiologies. Despite these limitations, the study provides valuable data on infertility patterns in a previously under-documented region of Cameroon.</p>
    </sec>
    <sec id="sec6">
      <title>6. Conclusions</title>
      <p>Couple infertility represents a significant and persistent public health concern in southern Cameroon, accounting for more than one in seven gynecological consultations at the Ebolowa Regional Hospital. This high prevalence highlights the substantial medical, psychological, and social burden associated with infertility in a setting where parenthood remains a central societal expectation.</p>
      <p>The affected women were predominantly young and within their peak reproductive years, emphasizing that infertility in this population is not primarily age-related but rather linked to preventable and potentially treatable conditions. Primary infertility was the most frequent presentation, and female factors—particularly tubal pathology—emerged as the leading contributors. The strong association between tubal obstruction and a high history of sexually transmitted infections, notably <italic>Chlamydia trachomatis</italic>, underscores the critical role of reproductive tract infections in the genesis of infertility in this context.</p>
      <p>Male factors accounted for nearly one-third of infertility cases and were mainly characterized by sperm abnormalities. However, the limited participation of male partners in the diagnostic process suggests that the true burden of male infertility may be underestimated. This finding reflects persistent sociocultural barriers that hinder male engagement in reproductive health care and calls for targeted strategies to promote male involvement in infertility evaluation.</p>
      <p>Overall, the etiological distribution observed in this study confirms the multifactorial nature of couple infertility and highlights the need for a comprehensive, couple-centered approach to diagnosis and management. Strengthening prevention and early treatment of sexually transmitted infections, promoting timely referral to specialized care, and improving awareness and participation of male partners are essential pillars for reducing the burden of infertility in this region.</p>
      <p>Incorporating integrated infertility services into routine reproductive health programs, particularly at the regional level, could substantially improve outcomes for affected couples. Further multicenter, prospective studies with broader diagnostic coverage are warranted to refine etiological understanding and inform context-adapted clinical guidelines and public health policies in Cameroon and similar settings.</p>
    </sec>
    <sec id="sec7">
      <title>Acknowledgements</title>
      <p>This work was supported by the Ebolowa regional Hospital Center and the Faculty of Medecines an Pharmaceutical sciences Sangmelima.</p>
    </sec>
    <sec id="sec8">
      <title>Ethical Approval</title>
      <p>This study was approved by the ERHC ethics committee. Informed consent was obtained from all participants prior to data collection. All procedures involving human participants were conducted in accordance with the Declaration of Helsinki.</p>
    </sec>
    <sec id="sec9">
      <title>Authors’ Contribution</title>
      <p><bold>Data design and acquisition:</bold> Messakop M.Y., Bilo’o L.L., Njemba M.J.M., Mboua N.V., Hirzel R., Aboui F.<bold>Data analysis and interpretation:</bold> Messakop M.Y., Hirzel R., Mboua N.V., Bisay S.U., Bilo’o L, Atangana E.H., Ndoumba A., Aboui F.<bold>Editing of the article:</bold>Messakop M.Y., Njemba M.J.M., Edzimbi A., Hirzel R.<bold>Critical review of intellectual content</bold>: Bengono R., Foumane P., Ekono G.M.</p>
    </sec>
  </body>
  <back>
    <ref-list>
      <title>References</title>
      <ref id="B1">
        <label>1.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">World Health Organization (2023) Infertility: Fact Sheet. WHO.</mixed-citation>
          <element-citation publication-type="other">
            <year>2023</year>
            <article-title>Infertility: Fact Sheet</article-title>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B2">
        <label>2.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Koné, B.S., Keita, S., Sylla, C., Coulibaly, M., Traore, K., Guindo, I., <italic>et al.</italic> (2023) Profil épidémioclinique et principales étiologies de l’infertilité du couple au Centre de Santé de Référence de Kalaban Coro, Koulikoro (Mali). <italic>Health Sciences and Disease</italic>, 24, 84-90.</mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Keita, S.</string-name>
              <string-name>Sylla, C.</string-name>
              <string-name>Coulibaly, M.</string-name>
              <string-name>Traore, K.</string-name>
              <string-name>Guindo, I.</string-name>
              <string-name>Coro, K</string-name>
            </person-group>
            <year>2023</year>
            <article-title>Profil épidémioclinique et principales étiologies de l’infertilité du couple au Centre de Santé de Référence de Kalaban Coro, Koulikoro (Mali)</article-title>
            <source>Health Sciences and Disease</source>
            <volume>24</volume>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B3">
        <label>3.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Brzakowski, M., Lourdel, E., Cabry, R., Oliéric, M., Claeys, C., Devaux, A., <italic>et al.</italic> (2009) Épidémiologie du couple infertile. <italic>Journal</italic><italic>de</italic><italic>Gynécologie</italic><italic>Obstétrique</italic><italic>et</italic><italic>Biologie</italic><italic>de</italic><italic>la</italic><italic>Reproduction</italic>, 38, F3-F7. https://doi.org/10.1016/s0368-2315(09)70226-1 <pub-id pub-id-type="doi">10.1016/s0368-2315(09)70226-1</pub-id><pub-id pub-id-type="pmid">19268222</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.1016/s0368-2315(09)70226-1">https://doi.org/10.1016/s0368-2315(09)70226-1</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Brzakowski, M.</string-name>
              <string-name>Lourdel, E.</string-name>
              <string-name>Cabry, R.</string-name>
              <string-name>Claeys, C.</string-name>
              <string-name>Devaux, A.</string-name>
            </person-group>
            <year>2009</year>
            <article-title>Épidémiologie du couple infertile</article-title>
            <source>Journal de Gynécologie Obstétrique et Biologie de la Reproduction</source>
            <volume>2315</volume>
            <issue>09</issue>
            <pub-id pub-id-type="doi">10.1016/s0368-2315(09)70226-1</pub-id>
            <pub-id pub-id-type="pmid">19268222</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B4">
        <label>4.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Gaskins, A.J. and Chavarro, J.E. (2018) Diet and Fertility: A Review. <italic>American Journal</italic><italic>of</italic><italic>Obstetrics</italic><italic>and</italic><italic>Gynecology</italic>, 218, 379-389. https://doi.org/10.1016/j.ajog.2017.08.010 <pub-id pub-id-type="doi">10.1016/j.ajog.2017.08.010</pub-id><pub-id pub-id-type="pmid">28844822</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.1016/j.ajog.2017.08.010">https://doi.org/10.1016/j.ajog.2017.08.010</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Gaskins, A.J.</string-name>
              <string-name>Chavarro, J.E.</string-name>
            </person-group>
            <year>2018</year>
            <article-title>Diet and Fertility: A Review</article-title>
            <source>American Journal of Obstetrics and Gynecology</source>
            <volume>218</volume>
            <pub-id pub-id-type="doi">10.1016/j.ajog.2017.08.010</pub-id>
            <pub-id pub-id-type="pmid">28844822</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B5">
        <label>5.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Ngaha, J., Tompeen, I., Moustapha, B., Toukem, C., Ako, A., Wandji, B., <italic>et al.</italic> (2023) Clinical, Psychological and Socio-Economic Profile of Women Consulting for Couple Infertility in the Yaounde Gynaeco-Obstetric and Paediatric Hospital. <italic>Open</italic><italic>Journal</italic><italic>of</italic><italic>Obstetrics</italic><italic>and</italic><italic>Gynecology</italic>, 13, 490-498. https://doi.org/10.4236/ojog.2023.133045 <pub-id pub-id-type="doi">10.4236/ojog.2023.133045</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.4236/ojog.2023.133045">https://doi.org/10.4236/ojog.2023.133045</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Ngaha, J.</string-name>
              <string-name>Tompeen, I.</string-name>
              <string-name>Moustapha, B.</string-name>
              <string-name>Toukem, C.</string-name>
              <string-name>Ako, A.</string-name>
              <string-name>Wandji, B.</string-name>
              <string-name>Clinical, P</string-name>
            </person-group>
            <year>2023</year>
            <article-title>Clinical, Psychological and Socio-Economic Profile of Women Consulting for Couple Infertility in the Yaounde Gynaeco-Obstetric and Paediatric Hospital</article-title>
            <source>Open Journal of Obstetrics and Gynecology</source>
            <volume>13</volume>
            <pub-id pub-id-type="doi">10.4236/ojog.2023.133045</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B6">
        <label>6.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Larsen, U., Masenga, G. and Mlay, J. (2006) Infertility in a Community and Clinic-Based Sample of Couples in Moshi, Northern Tanzania. <italic>East</italic><italic>African</italic><italic>Medical</italic><italic>Journal</italic>, 83, 10-17. https://doi.org/10.4314/eamj.v83i1.9355 <pub-id pub-id-type="doi">10.4314/eamj.v83i1.9355</pub-id><pub-id pub-id-type="pmid">16642745</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.4314/eamj.v83i1.9355">https://doi.org/10.4314/eamj.v83i1.9355</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Larsen, U.</string-name>
              <string-name>Masenga, G.</string-name>
              <string-name>Mlay, J.</string-name>
              <string-name>Moshi, N</string-name>
            </person-group>
            <year>2006</year>
            <article-title>Infertility in a Community and Clinic-Based Sample of Couples in Moshi, Northern Tanzania</article-title>
            <source>East African Medical Journal</source>
            <volume>83</volume>
            <pub-id pub-id-type="doi">10.4314/eamj.v83i1.9355</pub-id>
            <pub-id pub-id-type="pmid">16642745</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B7">
        <label>7.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Olatunji, A. and Sule-Odu, A. (2004) The Pattern of Infertility Cases at a University Hospital. <italic>West</italic><italic>African</italic><italic>Journal</italic><italic>of</italic><italic>Medicine</italic>, 22, 205-207. https://doi.org/10.4314/wajm.v22i3.27950 <pub-id pub-id-type="doi">10.4314/wajm.v22i3.27950</pub-id><pub-id pub-id-type="pmid">14696941</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.4314/wajm.v22i3.27950">https://doi.org/10.4314/wajm.v22i3.27950</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Olatunji, A.</string-name>
              <string-name>Sule-Odu, A.</string-name>
            </person-group>
            <year>2004</year>
            <article-title>The Pattern of Infertility Cases at a University Hospital</article-title>
            <source>West African Journal of Medicine</source>
            <volume>22</volume>
            <pub-id pub-id-type="doi">10.4314/wajm.v22i3.27950</pub-id>
            <pub-id pub-id-type="pmid">14696941</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B8">
        <label>8.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Nana, P.N., Wandji, J.C., Fomulu, J.N., Mbu, R.E., Leke, R.J.I. and Woubinwou, M.J. (2011) Aspects Psycho-Sociaux chez Patients Infertiles à la Maternite Principale de l’Hopital Central de Yaoundé, Cameroun. <italic>Clinics</italic><italic>in</italic><italic>Mother</italic><italic>and</italic><italic>Child</italic><italic>Health</italic>, 8, 1-5. https://doi.org/10.4303/cmch/c100601 <pub-id pub-id-type="doi">10.4303/cmch/c100601</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.4303/cmch/c100601">https://doi.org/10.4303/cmch/c100601</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Nana, P.N.</string-name>
              <string-name>Wandji, J.C.</string-name>
              <string-name>Fomulu, J.N.</string-name>
              <string-name>Mbu, R.E.</string-name>
              <string-name>Leke, R.J.I.</string-name>
              <string-name>Woubinwou, M.J.</string-name>
            </person-group>
            <year>2011</year>
            <article-title>Aspects Psycho-Sociaux chez Patients Infertiles à la Maternite Principale de l’Hopital Central de Yaoundé, Cameroun</article-title>
            <source>Clinics in Mother and Child Health</source>
            <volume>8</volume>
            <pub-id pub-id-type="doi">10.4303/cmch/c100601</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B9">
        <label>9.</label>
        <citation-alternatives>
          <mixed-citation publication-type="report">Starrs, A.M., Ezeh, A.C., Barker, G., Basu, A., Bertrand, J.T., Blum, R., <italic>et al.</italic> (2018) Accelerate Progress—Sexual and Reproductive Health and Rights for All: Report of the Guttmacher-Lancet Commission. <italic>The</italic><italic>Lancet</italic>, 391, 2642-2692. https://doi.org/10.1016/s0140-6736(18)30293-9 <pub-id pub-id-type="doi">10.1016/s0140-6736(18)30293-9</pub-id><pub-id pub-id-type="pmid">29753597</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.1016/s0140-6736(18)30293-9">https://doi.org/10.1016/s0140-6736(18)30293-9</ext-link></mixed-citation>
          <element-citation publication-type="report">
            <person-group person-group-type="author">
              <string-name>Starrs, A.M.</string-name>
              <string-name>Ezeh, A.C.</string-name>
              <string-name>Barker, G.</string-name>
              <string-name>Basu, A.</string-name>
              <string-name>Bertrand, J.T.</string-name>
              <string-name>Blum, R.</string-name>
            </person-group>
            <year>2018</year>
            <article-title>Accelerate Progress—Sexual and Reproductive Health and Rights for All: Report of the Guttmacher-Lancet Commission</article-title>
            <source>The Lancet</source>
            <volume>6736</volume>
            <issue>18</issue>
            <pub-id pub-id-type="doi">10.1016/s0140-6736(18)30293-9</pub-id>
            <pub-id pub-id-type="pmid">29753597</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B10">
        <label>10.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Liu, X., Zhang, J. and Wang, S. (2023) Global, Regional, and National Burden of Infertility Attributable to PCOS, 1990-2019. <italic>Human</italic><italic>Reproduction</italic>, 39, 108-118. https://doi.org/10.1093/humrep/dead241 <pub-id pub-id-type="doi">10.1093/humrep/dead241</pub-id><pub-id pub-id-type="pmid">38011904</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.1093/humrep/dead241">https://doi.org/10.1093/humrep/dead241</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Liu, X.</string-name>
              <string-name>Zhang, J.</string-name>
              <string-name>Wang, S.</string-name>
              <string-name>Global, R</string-name>
            </person-group>
            <year>2023</year>
            <article-title>Global, Regional, and National Burden of Infertility Attributable to PCOS, 1990-2019</article-title>
            <source>Human Reproduction</source>
            <volume>39</volume>
            <pub-id pub-id-type="doi">10.1093/humrep/dead241</pub-id>
            <pub-id pub-id-type="pmid">38011904</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B11">
        <label>11.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Borumandnia, N., Alavi Majd, H., Khadembashi, N. and Alaii, H. (2022) Worldwide Trend Analysis of Primary and Secondary Infertility Rates over Past Decades: A Cross-Sectional Study. <italic>International</italic><italic>Journal</italic><italic>of</italic><italic>Reproductive</italic><italic>BioMedicine</italic> ( <italic>IJRM</italic>), 20, 37-46. https://doi.org/10.18502/ijrm.v20i1.10407 <pub-id pub-id-type="doi">10.18502/ijrm.v20i1.10407</pub-id><pub-id pub-id-type="pmid">35308328</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.18502/ijrm.v20i1.10407">https://doi.org/10.18502/ijrm.v20i1.10407</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Borumandnia, N.</string-name>
              <string-name>Majd, H.</string-name>
              <string-name>Khadembashi, N.</string-name>
              <string-name>Alaii, H.</string-name>
            </person-group>
            <year>2022</year>
            <article-title>Worldwide Trend Analysis of Primary and Secondary Infertility Rates over Past Decades: A Cross-Sectional Study</article-title>
            <source>International Journal of Reproductive BioMedicine (IJRM)</source>
            <volume>20</volume>
            <pub-id pub-id-type="doi">10.18502/ijrm.v20i1.10407</pub-id>
            <pub-id pub-id-type="pmid">35308328</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B12">
        <label>12.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Luo, Y., Hong, C., Fan, H., Huang, Y., Zhong, P., Zhao, Y., <italic>et al.</italic> (2024) Trends and Distribution of Infertility—Asia Pacific Region, 1990-2021. <italic>China</italic><italic>CDC</italic><italic>Weekly</italic>, 6, 689-694. https://doi.org/10.46234/ccdcw2024.155 <pub-id pub-id-type="doi">10.46234/ccdcw2024.155</pub-id><pub-id pub-id-type="pmid">39035872</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.46234/ccdcw2024.155">https://doi.org/10.46234/ccdcw2024.155</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Luo, Y.</string-name>
              <string-name>Hong, C.</string-name>
              <string-name>Fan, H.</string-name>
              <string-name>Huang, Y.</string-name>
              <string-name>Zhong, P.</string-name>
              <string-name>Zhao, Y.</string-name>
            </person-group>
            <year>2024</year>
            <article-title>Trends and Distribution of Infertility—Asia Pacific Region, 1990-2021</article-title>
            <source>China CDC Weekly</source>
            <volume>6</volume>
            <pub-id pub-id-type="doi">10.46234/ccdcw2024.155</pub-id>
            <pub-id pub-id-type="pmid">39035872</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B13">
        <label>13.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Abebe, M.S., Afework, M. and Abaynew, Y. (2020) Primary and Secondary Infertility in Africa: Systematic Review with Meta-Analysis. <italic>Fertility</italic><italic>Research</italic><italic>and</italic><italic>Practice</italic>, 6, Article No. 20. https://doi.org/10.1186/s40738-020-00090-3 <pub-id pub-id-type="doi">10.1186/s40738-020-00090-3</pub-id><pub-id pub-id-type="pmid">33292584</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.1186/s40738-020-00090-3">https://doi.org/10.1186/s40738-020-00090-3</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Abebe, M.S.</string-name>
              <string-name>Afework, M.</string-name>
              <string-name>Abaynew, Y.</string-name>
            </person-group>
            <year>2020</year>
            <article-title>Primary and Secondary Infertility in Africa: Systematic Review with Meta-Analysis</article-title>
            <source>Fertility Research and Practice</source>
            <volume>6</volume>
            <elocation-id>No</elocation-id>
            <pub-id pub-id-type="doi">10.1186/s40738-020-00090-3</pub-id>
            <pub-id pub-id-type="pmid">33292584</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B14">
        <label>14.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Obinchemti Egbe, T., Ngo Mbaki, C., Tendongfor, N., Temfack, E. and Belley-Priso, E. (2020) Infertility and Associated Factors in Three Hospitals in Douala, Cameroon: A Cross-Sectional Study. <italic>African</italic><italic>Health</italic><italic>Sciences</italic>, 20, 1985-1995. https://doi.org/10.4314/ahs.v20i4.57 <pub-id pub-id-type="doi">10.4314/ahs.v20i4.57</pub-id><pub-id pub-id-type="pmid">34394265</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.4314/ahs.v20i4.57">https://doi.org/10.4314/ahs.v20i4.57</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Egbe, T.</string-name>
              <string-name>Mbaki, C.</string-name>
              <string-name>Tendongfor, N.</string-name>
              <string-name>Temfack, E.</string-name>
              <string-name>Belley-Priso, E.</string-name>
              <string-name>Douala, C</string-name>
            </person-group>
            <year>2020</year>
            <article-title>Infertility and Associated Factors in Three Hospitals in Douala, Cameroon: A Cross-Sectional Study</article-title>
            <source>African Health Sciences</source>
            <volume>20</volume>
            <pub-id pub-id-type="doi">10.4314/ahs.v20i4.57</pub-id>
            <pub-id pub-id-type="pmid">34394265</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B15">
        <label>15.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Marie, A.J., Tracy, W.M.K., Jovanny, F.T., Ange, N.D.M., Estelle, K.M.D., Marlène, O.N., <italic>et al.</italic> (2025) Aspects épidémiologiques et diagnostiques de l’infertilité du couple dans la région de l’Ouest du Cameroun. <italic>Health Sciences and Disease</italic>, 26, 15-22.</mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Marie, A.J.</string-name>
              <string-name>Tracy, W.M.K.</string-name>
              <string-name>Jovanny, F.T.</string-name>
              <string-name>Ange, N.D.M.</string-name>
              <string-name>Estelle, K.M.D.</string-name>
            </person-group>
            <year>2025</year>
            <article-title>Aspects épidémiologiques et diagnostiques de l’infertilité du couple dans la région de l’Ouest du Cameroun</article-title>
            <source>Health Sciences and Disease</source>
            <volume>26</volume>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B16">
        <label>16.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Murshid, R.M., Al Aany, R. and Ammar, O.F. (2024) Epidemiological Profile of Infertile Couples in Western Iraq. <italic>International</italic><italic>Journal</italic><italic>of</italic><italic>Public</italic><italic>Health</italic><italic>Science</italic> ( <italic>IJPHS</italic>), 13, 1-6. https://doi.org/10.11591/ijphs.v13i1.23054 <pub-id pub-id-type="doi">10.11591/ijphs.v13i1.23054</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.11591/ijphs.v13i1.23054">https://doi.org/10.11591/ijphs.v13i1.23054</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Murshid, R.M.</string-name>
              <string-name>Aany, R.</string-name>
              <string-name>Ammar, O.F.</string-name>
            </person-group>
            <year>2024</year>
            <article-title>Epidemiological Profile of Infertile Couples in Western Iraq</article-title>
            <source>International Journal of Public Health Science (IJPHS)</source>
            <volume>13</volume>
            <pub-id pub-id-type="doi">10.11591/ijphs.v13i1.23054</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B17">
        <label>17.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Salroo, I.N., Raina, Z.A., Mir, M.F. and Rasool, M. (2024) An Overview of the Clinical Profile of Infertile Patients Who Underwent Hysterosalpingography. <italic>Asian</italic><italic>Journal</italic><italic>of</italic><italic>Medical</italic><italic>Sciences</italic>, 15, 223-227. https://doi.org/10.3126/ajms.v15i4.62106 <pub-id pub-id-type="doi">10.3126/ajms.v15i4.62106</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3126/ajms.v15i4.62106">https://doi.org/10.3126/ajms.v15i4.62106</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Salroo, I.N.</string-name>
              <string-name>Raina, Z.A.</string-name>
              <string-name>Mir, M.F.</string-name>
              <string-name>Rasool, M.</string-name>
            </person-group>
            <year>2024</year>
            <article-title>An Overview of the Clinical Profile of Infertile Patients Who Underwent Hysterosalpingography</article-title>
            <source>Asian Journal of Medical Sciences</source>
            <volume>15</volume>
            <pub-id pub-id-type="doi">10.3126/ajms.v15i4.62106</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B18">
        <label>18.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Madziyire, M.G., Magwali, T.L., Chikwasha, V. and Mhlanga, T. (2021) The Causes of Infertility in Women Presenting to Gynaecology Clinics in Harare, Zimbabwe: A Cross Sectional Study. <italic>Fertility</italic><italic>Research</italic><italic>and</italic><italic>Practice</italic>, 7, Article No. 1. https://doi.org/10.1186/s40738-020-00093-0 <pub-id pub-id-type="doi">10.1186/s40738-020-00093-0</pub-id><pub-id pub-id-type="pmid">33397485</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.1186/s40738-020-00093-0">https://doi.org/10.1186/s40738-020-00093-0</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Madziyire, M.G.</string-name>
              <string-name>Magwali, T.L.</string-name>
              <string-name>Chikwasha, V.</string-name>
              <string-name>Mhlanga, T.</string-name>
              <string-name>Harare, Z</string-name>
            </person-group>
            <year>2021</year>
            <article-title>The Causes of Infertility in Women Presenting to Gynaecology Clinics in Harare, Zimbabwe: A Cross Sectional Study</article-title>
            <source>Fertility Research and Practice</source>
            <volume>7</volume>
            <elocation-id>No</elocation-id>
            <pub-id pub-id-type="doi">10.1186/s40738-020-00093-0</pub-id>
            <pub-id pub-id-type="pmid">33397485</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B19">
        <label>19.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Eisenberg, M.L., Esteves, S.C., Lamb, D.J., Hotaling, J.M., Giwercman, A., Hwang, K., <italic>et al.</italic> (2023) Male Infertility. <italic>Nature</italic><italic>Reviews</italic><italic>Disease</italic><italic>Primers</italic>, 9, Article No. 49. https://doi.org/10.1038/s41572-023-00459-w <pub-id pub-id-type="doi">10.1038/s41572-023-00459-w</pub-id><pub-id pub-id-type="pmid">37709866</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.1038/s41572-023-00459-w">https://doi.org/10.1038/s41572-023-00459-w</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Eisenberg, M.L.</string-name>
              <string-name>Esteves, S.C.</string-name>
              <string-name>Lamb, D.J.</string-name>
              <string-name>Hotaling, J.M.</string-name>
              <string-name>Giwercman, A.</string-name>
              <string-name>Hwang, K.</string-name>
            </person-group>
            <year>2023</year>
            <article-title>Male Infertility</article-title>
            <source>Nature Reviews Disease Primers</source>
            <volume>9</volume>
            <elocation-id>No</elocation-id>
            <pub-id pub-id-type="doi">10.1038/s41572-023-00459-w</pub-id>
            <pub-id pub-id-type="pmid">37709866</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B20">
        <label>20.</label>
        <citation-alternatives>
          <mixed-citation publication-type="other">Ngalle, F.E., Mbouche, L., Mpah, E.M., Mekeme, J.M., Essomba, A., Nkolo, D.E., <italic>et</italic><italic>al.</italic> (2023) Clinical and Morphological Profile of Male Infertility in 3 Reference Hospitals in the City of Douala in Cameroon. <italic>African</italic><italic>Urology</italic>, 3, 77-81. https://doi.org/10.36303/auj.0072 <pub-id pub-id-type="doi">10.36303/auj.0072</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.36303/auj.0072">https://doi.org/10.36303/auj.0072</ext-link></mixed-citation>
          <element-citation publication-type="other">
            <person-group person-group-type="author">
              <string-name>Ngalle, F.E.</string-name>
              <string-name>Mbouche, L.</string-name>
              <string-name>Mpah, E.M.</string-name>
              <string-name>Mekeme, J.M.</string-name>
              <string-name>Essomba, A.</string-name>
              <string-name>Nkolo, D.E.</string-name>
            </person-group>
            <year>2023</year>
            <article-title>Clinical and Morphological Profile of Male Infertility in 3 Reference Hospitals in the City of Douala in Cameroon</article-title>
            <source>African Urology</source>
            <volume>3</volume>
            <pub-id pub-id-type="doi">10.36303/auj.0072</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
    </ref-list>
  </back>
</article>