With the opening of the second child policy, there are many mothers who had a cesarean delivery in the first child who want to have a vaginal delivery on their own in the second child. According to statistics, the success rate of vaginal delivery for another pregnancy after cesarean delivery is about 60-70%, and the most serious complication is uterine rupture, which usually occurs in less than 1%. The most serious complication is the rupture of the uterus, which usually occurs in less than 1% of cases. After a rupture of the uterus, both the mother and the baby are in serious danger of dying. In addition to uterine rupture, mothers who have a successful vaginal delivery also have a higher chance of having weak contractions and postpartum bleeding compared to mothers who do not have a scarred uterus. Therefore, the possibility of vaginal delivery for pregnant mothers with a scarred uterus needs to be evaluated in a comprehensive manner. The size of the baby, the reason for the previous cesarean section, as well as the mother’s own weight and pelvic condition are all very important factors to consider. Mothers who choose to deliver vaginally should go to a qualified hospital for a trial of labor to ensure the safety of the procedure and to have an emergency cesarean delivery if necessary.