The posterior wall of the uterine placenta, with its lower edge covering the intrauterine opening, is prone to hemorrhage with cesarean delivery. Cesarean section, generally referred to as Caesarean section, is an important procedure in the field of obstetrics and is an effective means of resolving difficult deliveries as well as obstetric complications, saving the lives of mothers and perinatal babies. However, cesarean section carries certain risks, and the chance of hemorrhage is higher than with normal delivery. Pregnant women with a posterior wall of the uterine placenta, with the lower edge covering the intrauterine opening, are prone to hemorrhage if they undergo a cesarean section. This condition is called complete placenta praevia, in which the placenta is close to the opening of the uterus and the nearby muscles contract poorly, making it easy to develop post-partum hemorrhage. If you are diagnosed with placenta praevia, it is important to seek prompt medical attention and early hospitalization for delivery.