Stomach pain and diarrhea are generally considered as acute gastroenteritis, mainly due to the following factors: a. Diet, stomach pain and diarrhea due to unclean diet or eating spicy and stimulating food, causing stimulation of the gastrointestinal tract, or acute gastric mucosal damage due to acute heavy drinking and stomach pain, while alcohol stimulates the intestinal mucosa and promotes faster intestinal peristalsis, resulting in diarrhea symptoms. Second, gastrointestinal dysfunction, due to the application of antibiotics for a long time, or other factors leading to intestinal flora dysbiosis, gastrointestinal dysfunction phenomenon, you can take drugs to regulate intestinal flora to improve the symptoms. Third, mental factors, due to long-term bad mood or stress, will also appear stomach pain, diarrhea phenomenon, it is recommended to pay attention to a reasonable diet and pay attention to maintain a good mood.