Slight pain in the abdominal cavity after appendectomy is normal and can be treated symptomatically. If there is severe pain or combined with fever, abdominal muscle tension, etc., the possibility of postoperative complications should be suspected. Appendectomy process, it is inevitable to the abdominal cavity organs and tissues or abdominal wall structures caused some damage, especially open surgical incision is generally longer, it is inevitable that abdominal pain symptoms, is a common postoperative situation. If the patient develops obvious abdominal pain combined with other symptoms, such as fever, abdominal distension, abdominal muscle tension, and postoperative heaviness, the patient should be suspected of postoperative complications, such as appendiceal stump fistula, postoperative hemorrhage, and pelvic abscess, which should be promptly notified to the treating doctor for prompt treatment. If pain occurs after appendectomy, it should be reported to the medical staff in time and treated according to the doctor’s advice.