After appendicitis surgery, you need to fast, and you can eat fluids after exhaustion, gradually transition to a normal diet, and gradually shift to high-protein, high-calorie, high-vitamin foods. Patients after appendicitis surgery need to fast and avoid eating any food, which can reduce intestinal peristalsis and thus promote the incision of appendicitis surgery to heal as soon as possible. The duration of fasting is usually 1~2 days, and if there is no gas, you need to extend the fasting time again. After exhaustion, you can gradually consume fluid food, semi-liquid food, ordinary food, etc. Fluid food can choose warm water, dilute rice soup, etc. Semi-liquid food includes rice porridge, egg custard, vegetable puree, etc. Ordinary food can choose fish, eggs, lean meat, etc. Postoperative patients should follow the doctor’s instructions to eat, avoid eating food too early, and do not choose foods that are easy to produce gas and not easy to digest, such as soy products, sweet potatoes and so on.