Our study has recorded 300 cases of obstetrical emergencies in adolescents, from a total number of 884 teenagers admitted for emergency in the service, i.e., a frequency of 33.9%.

During our study, the teenagers older or equal to 16 were 96% of the sample, while those who were less or equal to 15 represented 3.3%. The extreme ages were 13 and 19 years; middle age was 17.94 and medium age was 18.

Out-of-school teenagers made up the majority of our sample (see Table 1 ).

Around 70% of teenage girls were not in employment (see Table 2 ).

Married teenagers were in the majority in our sample (see Table 3 ).

Primigravid adolescents made up 75% of our sample, and 3% had a history of caesarean section (see Table 4 ).

Dystocia was the most frequent diagnosis, followed by SFA and hypertensive disorders, then haemorrhage (see Table 5 ).

Natural delivery was preferred in 58% of cases, followed by Caesarean section in 41% (see Table 6 ).

The reasons for caesarean section were dystocia in the majority of cases, followed by SFA (see Table 7 ).

Two cases of hysterectomy were performed for uterine rupture and post-partum haemorrhage (see Table 8 ).

Immediate postpartum hemorrhage was the major complication ( Table 9 ).

In our study, there was a statistically significant correlation between diagnosis on admission and perinatal prognosis, with P = 0.0004 ( Table 10 ).

There was also a statistically significant correlation between admission diagnosis and maternal prognosis, with P = 0.0005 ( Table 11 ).

Our study has recorded a frequency of 33.9% of obstetrical emergency cases in adolescents. This frequency is higher than that of Maiga IM [4] , who found a frequency of 25%, and it is inferior to that of Maiga D [5] , who found a frequency of 40.9%.

These differences could be explained by the study. Indeed, our study was carried out in a second reference structure of the health pyramid.

The age gap most represented was that of those aged 16 or older, with a rate of 96.7. This is higher than that of Dolo IT [6] , who has found a rate of 50.5%, and that of Dicko OH [7] , who has found a frequency of 55.5%. Adolescent girls aged 15 or younger were numerous, with a frequency of 3.3%. This could be explained by the rarity of sexual activity and/or a menstrual cycle usually anovular in this age gap.

The instruction contributes to the health of children and facilitates the resort to information and to the suggested services. Those who are not students represented 41% of adolescents. This result is inferior to those of Diane H [8] and Balde MM [9] , who found respectively 80.8% and 60%. This statistical difference could be explained by some improvements, thanks to the intention that this one aroused worldwide [10] .

Housewives represented 70.3%. Other authors have also found high frequencies: Dembele F , Dembele S [12] , and Balde MM [9] have found 95.6%, 63.2%, and 88%, respectively. This can be justified by the fact that adolescents drop out of school because of precocious marriage and/or pregnancy. This affects their health and reduces their chance to work. In Africa, more than 50% of girls give birth to their first baby before the age of 21 [10] . Married adolescents represented 88.3%; 11% were bachelors, and 0.7% were widows. Dicko OH [7] , Dembele F , and Konaté B [13] have found 85.3%, 86.9%, and 62.8%, respectively. These high rates of married people, comparable to our study, are imputable to the precocious marriages which prevail in our African countries. In Afghanistan and in Bangladesh, girls were married before 18 in 54% of cases, respectively [14] .

The majority of adolescents were in their first pregnancy, 75.3%. This result is lower than that of Dicko OH [7] , a past abortion. It is higher than that of Dembele F [14] , who found a rate of 0.67%. Numerous studies have shown the weak use of contraceptives among adolescents, and it is considered a determining factor in pregnancy.

In our study, a minority of adolescents (7.7%) used at least one contraceptive method. This result is inferior to those of Dicho OH [7] and Konaté B [13] , who found 9.1% and 16.7%, respectively. This low frequency could be explained by the population’s non-use of contraceptives, not because of a lack of communication but rather due to certain prejudices and cultural factors.

The goal of the prenatal consultation is to screen for pregnancies at risk and keep the woman safe during the pregnancy, to permit her to deliver a healthy child in order to teach her how to take care of the newborn. In our study, 21.1% of adolescents have not undergone any prenatal consultation. This frequency is inferior to that of Dembele S [12] , who found 58%, higher than that of Dembele F [11] , who found a frequency of 9.38%, and comparable to that of Konate B [13] , who found 21.1%. These differences could be justified by the fact that, in the district, there are many means of communication about the importance of prenatal consultation and people are near the health centre.

In our section, the majority (55%) of patients have been evacuated, and 45% have come by themselves. On the other hand, Konaté B [13] found 7.7% and 71.2%, respectively. This statistical difference is explained by the demography of the commune VI. Maiga MI [14] found a higher frequency of evacuated patients at 66.5%. This frequency shows that the university hospital receives more evacuations than the reference health centres (CSREF). The principal reasons for evacuation were, among other things, delivery work, arterial hypertension, stationary dilatation, acute fetal pain, immature pelvis, immediate postpartum haemorrhage, prolonged work, and metrorragies. Uterine and pelvic immaturity represent elements favoring dystocic birth [15] . Therefore, delivery in adolescents is considered a delivery at risk according to numerous authors [5] [10] .

Dystocia has been the principal emergency with 32.3; this result is less than that of Konaté B [13] , who had found a frequency of 63.1%. This rate was clearly higher than that of Maiga IM , who had a frequency of 23.8%. An age less than 18 is a factor of dystocia [16] . Pre-eclampsia/eclampsia represented 20.7% of obstetrical emergencies in our study after dystocia [5] . This result is inferior to those of Baldé MM and Maiga M , who had found respectively 35% and 48.1%. Diané H has found a frequency close to ours (22.72%). The postpartum haemorrhage has represented 9.4% of obstetrical emergencies. Diané H , Baldé , and Dembélé F [11] had found respectively 7%, 2.9%, and 1.56%. These differences are explained by the fact that our study has been carried out in a reference health centre, which is the second resort of care according to the health pyramid. According to the literature, the most frequent delivery route in adolescents is natural birth.

The natural deliveries represented 58.7%; this rate is higher than that of Konaté B [13] , who found 29.9%, and lower than that of Dembélé F [11] , who obtained a frequency of 83.85%.

Instrumental extraction in adolescents varies from 8.4% to 26.9%, for which the principal indication is poor maternal cooperation during the expulsive phase, linked to defective psychological preparation of adolescents in order to give birth in good condition (12.15%). In our study, extraction by cup, as it is the only instrument used in labour, was necessary in 48 cases, or 27.3% of natural births. This result is higher than that of Dicko OH , who found 20.25%, and close to that of Diané H , who obtained a frequency of 29.31%. Caesarean sections represented 41.3% of all deliveries in these adolescents. This percentage is lower than that of Konaté B [13] (78%); on the other hand, Dembélé F [10] found a rate of 16.15%. This can be explained by the high frequency of caesareans in the hospital. Adolescents represent three times greater risk of undergoing caesarean for mechanical dystocias . Dystocia was the principal indication for caesarean, accounting for 66.2%.

Our result is higher than those of many authors: Dicko OH [7] 49.5%; Konaté B [13] 63.1%; and Diané H [8] 35.31%. This is explained by the fact that development in women ends only at around 18 years of age and that the expulsion canal reaches maturity only at around 20 to 21 years of age, even though bone age varies noticeably from one woman to another and from one population to another according to nutritional state [1] .

The adolescents had complications in 14.7% of cases, the major one being immediate postpartum haemorrhage (45 cases), with a frequency of 15%; we recorded 5 deaths (1.7%). The causes of death were eclampsia (2 cases), uterine rupture (1 case), uterine inversion (1 case), and retroplacentary haematoma (1 case). According to the WHO, adolescents are 4 times more susceptible than women older than 20 to die from causes linked to pregnancy [2] . Thiam O et al. [17] reported a mortality rate of 10.7%. This difference shows the improvement in access to obstetrical emergency care and the quality of the services offered.

It is one of the assessment methods of the newborns’ conditions since birth. This score is normal between seven and ten points at the first minute, mediocre at four to six, and bad from zero to three. In our series, prenatal asphyxia has been defined as all newborns whose Apgar score is less than seven . The Apgar score was inferior to 7 at the first minute in 13.1%. This result is higher than those of Dicko OH and Dembélé F [11] , who had found, respectively, 10%, 3.8%, and 8.72%.

Low birth weight at delivery is two times more frequent in adolescents [18] than in adults. Newborn babies with low birth weight represented 23.6%. This result was higher than those of Dicko OH [7] and Dembélé F [11] , who found 13.33% and 10.26%, respectively. This low weight is attributable either to prematurity, in which the weight corresponds to gestational age, or to hypotrophy, in which the weight is low during pregnancy. Transfer to neonatology varies according to the authors (Diané and Dicko) between 22% and 41%; our reference rate was 38.7%. The main reasons were as follows: perinatal asphyxia (56%), hypotrophy (1.6%), prematurity (15.5%), neonatal infection (4.3%), macrosomia (1.7%), and malformation (0.9%) (omphalocele). In our study, the vast majority of newborns were alive at delivery (89.5%), while a minority (0.5%) were stillborn. We recorded 8.6% early neonatal deaths (23 cases). The causes of these deaths were perinatal asphyxia (18 cases), prematurity (4 cases), and omphalocele (1 case). In 2017, the majority of neonatal deaths (75%) occurred during the first week of life, and about one million newborns died in the first 24 minutes. Premature deliveries, complications during delivery (birth asphyxia), and congenital malformations were the causes of these neonatal deaths [19] . There was a statistically significant correlation in our study between the diagnosis at admission and maternal prognosis (P = 0.0005).