Appendicitis can not eat cold. When there is inflammation of the appendix, it manifests itself as pain in the lower right abdomen, and inflammation of the appendix will spread to the nearby small intestine as well as the cecum, which will lead to incomplete intestinal obstruction, and even intestinal spasm and increased intestinal peristalsis. If you eat something cold at this time, it will aggravate the burden on the gastrointestinal tract, leading to an increase in abdominal pain, and nausea, vomiting and fever may occur. After appendectomy, you should not eat cold food for a short period of time, because on the day of the operation and the first day after the operation, the gastrointestinal function has not yet recovered, that is, the small intestine has not resumed peristalsis, and if you eat cold food at this time, it will lead to the occurrence of abdominal pain.