Rib pain after appendicitis surgery in children may be due to wound pain, costochondritis, muscle injury and other conditions. 1. Wound pain: children’s appendicitis surgery will cause a large surgical wound to the patient’s right abdomen, when the anesthetic effect disappears, the wound will appear pain, the patient will turn over and other activities will lead to the wound pulling caused by the pain aggravation, when serious, it will radiate to the ribs, resulting in pain in the ribcage. 2. Costal chondritis: children’s rib pain after appendectomy may also be due to costal chondritis. This disease may be related to infection, trauma surgery and other reasons, will cause the patient to appear rib pain, obvious pressure pain and swelling of the rib cartilage. 3. Muscle injury: muscle injury in the ribs can also cause pain in the rib area, and patients will have localized bruising, pain, swelling, and some patients will also be accompanied by muscle stiffness. Children who are not feeling well after appendicitis surgery should seek medical attention in time to avoid delays.