For appendicitis, the current surgical methods are relatively safe, and most of the surgical results are good. However, postoperative care is very important, and we must fast for a few days. Appendicitis refers to the inflammatory changes of the appendix due to various factors, and it is an abdominal surgical disease. It is a common disease, and its prognosis depends on timely diagnosis and treatment. Early diagnosis and treatment, patients can recover in a short time, and the mortality rate is .1%-.2%; Delaying diagnosis and treatment can cause serious complications and even death. Clinically, there are often symptoms such as right lower abdominal pain, elevated body temperature, vomiting and neutropenia. After the operation, you only need to fast for one day, and you can give liquid food on the second day, liquid food on the third and a half days, and soft food on the fifth day. Anorectal surgery should be fasted for 2-3 days, and then given clean liquid and semi-liquid with little residue. Limit foods containing crude fiber in the diet, such as celery, Chinese cabbage, coriander, garlic sprout, leek, Chinese toon, winter bamboo shoot, hairy bamboo shoot, pineapple, etc., to reduce the frequency of defecation and the friction of undigested crude fiber on the wound; Oral and throat surgery, fasting within 6 hours after surgery, fasting hot fluids within 1-2 days, should be mainly cold fluids. In addition, acute appendicitis can subside, but about a quarter of patients will relapse after regression, so beware of postoperative complications.