The timing of a cesarean section depends on the condition of the pregnant woman and there is no fixed time. Caesarean section is a surgical incision of the uterus to remove the fetus and its appendages. If the pregnant woman does not have any high-risk factors, she can be operated after 39 weeks of pregnancy. If there is a combination of high-risk factors, the timing of C-section needs to be chosen according to the situation. For example, gestational hypertension, if the pregnant woman’s blood pressure is well controlled, you can consider choosing cesarean section after 37 weeks, and in the case of severe preeclampsia, 28 to 34 weeks of pregnancy, the condition is unstable, and surgery is required after active treatment. Pregnant women with combined gestational diabetes and hypothyroidism should terminate their pregnancy at 39-40 weeks. In addition to this, there are many other pregnancy comorbidities that have different optimal times for surgery and require preparation for surgery under the guidance of a doctor.