Drinking diarrhea needs to consider the following aspects: First, alcohol is an irritating liquid for the mucosa of the human gastrointestinal tract. When the gastric mucosa is red and swollen under the gastroscope after drinking alcohol, the permeability is increased, and there is a large amount of fluid leaking out when the permeability of the intestinal mucosa is increased, and the fluid mixes with feces, and the intestinal pressure is increased to easily produce diarrhea. Secondly, it is possible that the patient himself is irritable bowel syndrome, and the symptoms of diarrhea and abdominal pain are likely to appear under the stimulating effect of alcohol. Third, consider drinking alcohol while taking expired or bacterially contaminated food, the symptoms of diarrhea arise under the joint stimulating effect of bacteria and alcohol. Fourth, there is a possibility of alcohol allergy, alcohol allergy, the gastrointestinal mucosa shows increased permeability, which also causes a large amount of fluid leakage out of the intestinal mucosa.