Eating fruit stomach pain diarrhea may be related to chronic gastroenteritis, excessive intake, fruit unclean and other reasons. 1. Chronic gastroenteritis: patients with chronic gastroenteritis digestive function is relatively poor, eat fruit and other cold food is easy to stimulate the gastrointestinal mucosa, which leads to eat fruit stomach pain diarrhea. 2. excessive intake: because of the high content of water and dietary fiber in the fruit, a one-time excessive consumption will lead to excessive intestinal peristalsis, resulting in eating fruit stomach pain diarrhea. 3. Fruit is not clean: eating unwashed or not clean fruit, its top will remain pesticides, bacteria and other substances, can be due to chemical stimulation or gastrointestinal infections, causing gastrointestinal dysfunction, which leads to eating fruit stomach ache diarrhea. If you continue to have diarrhea after eating fruits, it is recommended to go to the hospital in time, clear the cause of the disease and then actively treat it, to avoid delaying the condition.