Caesarean section is a cesarean delivery. Cesarean delivery has become an effective means to resolve difficult deliveries and certain obstetric complications and to save the lives of mothers and perinatal children. The following are the indications for cesarean section. 1, placenta praevia and placenta abruptio bleeding and the opening of the uterus is not open, surgery should be considered. 2, weak contractions by oxytocin drip induction of labor without progress, or family members firmly request surgery. 3.If cephalopelvic disproportion is more obvious, surgery can be performed at the time of labor or near the expected date of delivery; if the relative cephalopelvic disproportion is more obvious, trial of labor can be performed first, and then surgery if it is unsuccessful. 4.Severe hyperemesis, gestational heart disease, fetal position abnormalities, advanced first birth, huge baby and umbilical cord prolapse, etc. 5.Anomalies of soft birth canal, such as myoma of lower uterine segment, ovarian cyst, vaginal diaphragm, etc. 6.For those who have a history of previous cesarean delivery, a comprehensive analysis should be made to decide the treatment method according to the reasons for the previous operation, the operation method and time (generally it is safer to have a trial of labor more than 3 years after the operation), etc. In case of trial of labor, close observation should be made and preparations for cesarean delivery should be made. The length of trial of labor is determined by the progress of labor, and generally no more than 12 hours is appropriate. If there is slow or no progress, or if there is an aura of uterine rupture, surgery should be performed promptly. The trial of labor should be shortened for those who have had a short cesarean section or a “body of the uterus” cesarean section.