The sudden dislike of greasy food may be related to the following reasons: First, some people may not like greasy food themselves, which is a personal diet and a normal phenomenon. Secondly, if you do not like to eat greasy food, it may be caused by liver disease, so you can go to the hospital for liver function tests to confirm. Third, it may be due to gastrointestinal diseases, such as gastritis, gastric ulcer, etc., which may cause patients to dislike eating greasy food. Fourth, for female patients who suddenly do not want to eat greasy food and accompanied by menopause, it is considered to be caused by early pregnancy, and it is recommended to go to the hospital for further examination. All of the above reasons may cause patients to suddenly not like to eat greasy things.