The course of delivery and the post partum period of 211 gravidae with closure of the cervix during pregnancy were compared with a compatible collective of another 221 gravidae without surgical closure. There were significant differences in some respects: The duration of labor (primiparae: 9,2 hours, multiparae: 6,7 hours) was longer than in the control-group (primiparae: 8,1 hours, multiparae: 5,0 hours); the necessity of administration of drugs and the frequency of dystocia (primiparae: 13%, multiparae: 9,2%) was higher than in the control-group (primiparae: 1,0%, multiparae: 0%). These and the higher incidence of lacerations of the cervix (13,4% respectively 1,7%) will be due to the scar, caused by the suture in the cervix. The rate of caesarean section was significantly higher (9,5% respectively 4,1%). There were more complications in disconnecting of the placenta. These and the higher rate of dystrophic newborn could be correlated with anamnestic dispositions of the gravidae. The higher rate of perinatal mortality (9,9%) than in the controlgroup (3,6%) is associated with the higher rate of prematurity (22,1%) than in the control-group (8,5%). A higher incidence of malformation was not observed, but a higher rate of neurological complications in the newborn. The post partum period of the mother was not significantly different than those of the control-group