If diarrhea occurs after appendicitis surgery, the cause should be identified and treated symptomatically. There are several reasons why diarrhea occurs after appendicitis surgery: 1. The patient should eat a light diet, eat more easily digestible food, so that the gastrointestinal function can be well regulated, and when its digestive function is strengthened, the phenomenon of diarrhea will not occur. 2, appendicitis attacks can cause peritonitis, leaving peritoneal adhesions and other conditions, this situation will also affect the digestive function, so that patients often appear diarrhea, through physical therapy and the patient’s self-regulation can be improved. 3, diarrhea after appendicitis surgery may be due to gastrointestinal disease, not related to appendectomy. This is not related to the appendix surgery, this situation should go to the hospital in time to identify the cause, symptomatic treatment, in the hospital can be laboratory blood tests, if there is enteritis and other conditions, you can take antibiotics and regulate the gastrointestinal tract drugs for treatment.