Women who have had a cesarean section are generally recommended to wait at least a year and a half after the procedure before having another pregnancy. Instead of going through the normal birth canal, cesarean section surgery is a procedure that opts to remove the fetus and its appendages through an incision in the abdomen, into the pelvis, and after the uterus is cut open in its entirety. Although the surgical technique is well established, damage to the uterus is unavoidable. The most important component of the uterus is smooth muscle. Throughout pregnancy, the uterus can gradually increase in size from the size of a hand fist to the size of a basketball, relying on the tension of the uterine smooth muscle, whereas Cesarean section surgery requires cutting through the muscle, and after the muscle tissue has been damaged, the recovery time is relatively long, usually taking 18-24 months. If the uterine smooth muscle has not recovered to normal after a cesarean section, then as the uterus gradually increases in size, the muscle tissue at the cesarean section scar is gradually stretched, and uterine rupture, placenta implantation and other obstetrics are likely to occur, and once this happens, it will jeopardize the life of the mother and child. Therefore, you should be strictly contraceptive for more than one and a half years after cesarean section, and it is better to have a second birth after 2 years. If you have an unwanted pregnancy within one and a half years after the cesarean section, it is recommended that you terminate the pregnancy at an early stage of pregnancy, and medication abortion is preferred. If abortion is chosen, it should be performed by an experienced doctor under ultrasound guidance. Regardless of the choice of medication or artificial abortion, it should be carried out in a regular medical institution with blood reserves and rescue conditions.