Diarrhea generally refers to diarrhea, a drink of beer on diarrhea may be related to individual differences, irritable bowel syndrome, beer allergy. 1. Individual differences: some people’s intestinal mucosa may be more sensitive to the difference between hot and cold than others, if it is to drink cold beer, it will irritate the intestinal mucosa is easy to cause diarrhea. 2. Irritable bowel syndrome: patients may be intolerant to beer, which leads to gastrointestinal dysfunction after drinking beer. Diarrhea may occur, in addition to abdominal pain and other symptoms. 3. Beer allergy: beer is brewed by yeast, hops, malt and other substances, so some ingredients in beer can cause allergic reactions. This can lead to diarrhea and may be accompanied by symptoms such as skin rashes. A drink of beer on diarrhea can also be seen in other causes, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for relevant examinations, with the help of the doctor to clarify the cause, and targeted treatment or treatment.