Normal full-term pregnancy is usually at 37-42 weeks, so theoretically 38 weeks plus 3 days can be a cesarean section, but it is necessary to depend on the specific circumstances of the doctor to determine whether it is possible or not, usually, if there is no clear indication of cesarean section, it is generally recommended to wait for a natural delivery. If there are indications for cesarean section, and the fetus is basically fully developed after 37 weeks of pregnancy, and there are no abnormalities such as immature placenta or poor fetal development after examination, the doctor can choose the appropriate time for cesarean section operation. Most recommend cesarean section at 39 weeks to reduce neonatal complications. When there is no indication for cesarean section, it is recommended to prefer natural delivery, i.e., normal delivery through the birth canal, which is less traumatic for the pregnant woman, less postoperative bleeding, less risk of infection, and also promotes postpartum recovery. In addition, normal delivery can promote fetal neurological development and reduce the chance of neonatal complications, thus ensuring the safety of mother and baby. In addition, if it is found that the placenta is immature, in order to avoid the medical cause of preterm labor, it is necessary to extend the time of termination of pregnancy as appropriate to ensure that the fetal organs are well developed. If it is found that the fetus has died prematurely, or has serious malformations, or if the pregnant woman suffers from serious illnesses, such as diabetes, heart disease or other serious organic diseases, and is unable to continue the pregnancy, timely termination of the pregnancy should be considered, so as to ensure the safety of the fetus and the pregnant woman.