There are three common reasons for stomach pain after cesarean section: First, uterine contraction pain is the most common cause of stomach pain after cesarean section, there will be a burst of contraction pain during uterine contraction after cesarean section, and there is also a wound on top of the uterus, which will also appear pain, this kind of pain belongs to the physiological pain, and it does not need special treatment. Second, the wound pain after cesarean section, here refers to the wound of the abdominal wall, the wound of the abdominal wall is usually 10-15cm, so the wound is still in the process of healing after surgery will appear pain. Third, the postoperative abdominal infection pain, such as postoperative maternal resistance decline, prone to pelvic inflammatory disease, appendicitis, enteritis and other conditions triggered by pain, which requires symptomatic treatment with antibiotics.