Appendicitis is a common disease, so how is it caused by appendicitis? 1, improper diet People who like to eat raw and cold or unhygienic diet will have an increased chance of suffering from appendicitis. Because people generally have some gastrointestinal problems after eating cold or unclean food, such as constipation, gastrointestinal dysfunction and other symptoms, which will lead to poor blood flow to the appendix, increasing the chances of infection, so the diet should be clean and hygienic, less cold food. 2, lifestyle There are also aspects of life that cause appendicitis to occur, such as bad habits, if you catch a cold, or have a bad diet, often eat spicy food, etc., can lead to the onset of appendicitis. 3, the appendix of the official cavity obstruction First of all, we should know that the official cavity of appendicitis is very narrow, if the official cavity is obstructed by fecal stones, hair or food debris, or because of intestinal parasites, etc., this is the appendix will be distorted, which will lead to appendicitis. 4. Lymphatic tissue infection There are many rich lymphatic tissues in the wall of our appendix, and when the lymphatic tissues are invaded by germs, it will cause acute inflammation of the appendix. This is also the main cause of appendicitis.