PIP: The objective of this study was to verify the occurrence of pregnancy complications in adolescents and neonatal complications in their children. From 1980-1983, 88 pregnant adolescents under 16 years of age were treated at the Hospital das Clinicas of UFMG, Belo Horizonte, Brazil. The patients ranged in age from 13 to 16 years. There was an increased incidence of pregnancy complications in this group when compared to the incidence of complications presented by 552 patients over 17 years of age. The high percentage of unmarried adolescents indicates that a large number of their pregnancies were unplanned. There was a significant increase in the incidence of pre-eclampsia, urinary infection, and anemia in the group of pregnant adolescents. An increase in perinatal morbidity or mortality was not observed. Because of the obstetric problems detected, all pregnant adolescents should receive special attention in the prenatal period and during parturition.