1, postoperative diet: the first month after surgery: 6 times a day, the amount of each meal about 200ml, 2-3 hours between meals, food to soft food, such as: noodles, vegetable porridge, egg custard, etc. Avoid greasy, cold, hard, irritating food, can eat fruit, 1 hour after the meal to avoid lying down as far as possible, the second month after surgery to try to eat 5 times a day, each meal gradually increase the amount of postoperative 3-6 months or so Return to normal diet of 3 meals 2. If there is abdominal drainage not yet removed: Suggestions: Be careful to avoid drainage tube prolapse If the drainage tube prolapses outward, contact the doctor or seek emergency medical treatment promptly Daily record of drainage flow and color If there is a major change in drainage, seek medical treatment or contact the doctor by phone or website 3. If there is obvious fever, abdominal pain, vomiting, diarrhea and other discomfort, seek medical treatment promptly 4. Routine outpatient review is required at 1 month, 3 months, 6 months and 1 year after surgery.