Cesarean section will usually be more appropriate at 38-40 weeks, but the exact time needs to be decided according to the condition of the pregnant woman. In general, if the vital signs of the pregnant woman are good, and the fetus does not suffer from intrauterine hypoxia, placental abruption and other abnormalities, and only because of scarred uterus, abnormal fetal position and other factors need to carry out a cesarean section, you can carry out a cesarean section operation at 38-40 weeks, at this time, the fetus has been fully developed, and has a certain degree of adaptability to the external environment. If the pregnant woman has pregnancy complications such as gestational hypertension, gestational diabetes, or if the fetus has placenta praevia, fetal abruption, etc., she should make a judgment on the severity of the condition, and terminate the pregnancy in time if necessary. Therefore, the timing of the cesarean section needs to be decided according to the condition of the pregnant woman and the fetus, and the doctor should make a specific judgment.