A drink of beer on diarrhea may be alcohol stimulation of the gastrointestinal tract and other physiological reasons caused by gastrointestinal tract peristalsis accelerated, but also may be gastroenteritis and other pathological reasons, drinking beer after stimulating the damage caused by the gastric mucosa. 1. Physiological reasons: beer contains alcohol, and generally beer is cooler, some people’s gastrointestinal tract is more sensitive, intolerance, drinking beer will stimulate the gastrointestinal tract to accelerate peristalsis, diarrhea may occur. 2. Pathological reasons: if there is gastroenteritis, gastric ulcer and other diseases, drinking beer will stimulate the ulcer surface or inflammation surface, accelerate gastrointestinal peristalsis, there will also be diarrhea, may also be accompanied by bloating, lack of appetite and other symptoms. Drinking beer easily diarrhea exclude eating and other physiological reasons, may also be other reasons, should promptly seek medical attention, under the guidance of the doctor to identify the causes, and timely treatment. Usually pay attention to avoid cold food, as well as alcohol, hot pot and other stimulating food.