Aim: The evaluation of the effect of repeat cesarean sections in adolescent pregnancies on the morbidity, obstetric and perinatal results. Materials and methods: We reviewed the patient file and hospital records of patients who underwent at least one cesarean section among adolescent age group pregnant women who gave birth at our clinic between January 2010 and May 2013. The patients were divided into two groups as the patients who underwent the second cesarean section (116 patients) and those who underwent the third cesarean section (36 patients). The demographic data, maternal data and obstetric and perinatal results of the patients were evaluated. Results: A significant difference was present between the patients in the evaluation of the total number of examinations during pregnancy (P = 0.001), total maternal weight gain during pregnancy (P = 0.006), and the first examination gestational age (P = 0.006) and all values were less favorable in the third cesarean group. The gestational week at birth (P < 0.001), birth weight (P < 0.001), and APGAR score (P < 0.001) in the group with the third cesarean section were statistically significantly lower than the second cesarean section. The third cesarean cesarean was found to cause a significant risk increase for placenta accreta risk in adolescent pregnancies (P = 0.042). Conclusion: The increasing number of cesarean sections in the adolescent group is seen to be a significant risk factor for low gestational week of birth, low birth weight and related morbidities. The most important reason for the increased morbidity with increasing cesarean sections in the adolescent age has been defined as placenta accreta.