There will be differences in the development of fetuses in different weeks of pregnancy. Newborns born by cesarean section at 37 weeks of pregnancy are relatively less mature than those born at 38 weeks, when the fetus is just fully developed, which may increase the incidence of diseases, such as sepsis and nutritional deficiencies, due to the relatively low resistance and immunity of the fetus and its poor adaptability to the outside world. Newborns born by cesarean section at 38 weeks of pregnancy have increased weight compared to 37 weeks, have increased resistance to disease, are more adaptable to the external environment, and have a relatively lower incidence of disease after birth. The decision of when to perform cesarean delivery needs to be based on the specific conditions of the mother and the fetus. If the mother has no surgical indications, no pelvic abnormalities, such as pelvic deformity or stenosis; no soft birth canal abnormalities, such as genital tract tumors obstructing fetal head descent, vaginal diaphragm, or no serious comorbidities or complications, such as severe preeclampsia, heart disease, gestational hypertension, etc., and the fetus does not have intrauterine distress or fetal malposition, it is recommended to Natural delivery is recommended. In addition, all fetuses between 37 and 38 weeks are full-term. If the pregnant woman meets the indications for cesarean delivery, the physician will assess the specific situation and choose the appropriate time to terminate the pregnancy.