Black stools after drinking can be caused by physiological factors or pathological factors, and require symptomatic treatment according to the different causes. Common causes and treatment a, physiological factors if drinking a lot of red wine, or drinking alcohol when eating too much heavy-colored food, such as pig blood, duck blood, animal liver and iron supplement drugs, will cause the stool black, generally reduce the intake of such food or stop using drugs, the symptoms can gradually ease. Second, pathological factors previous history of chronic gastritis with erosion, peptic ulcer, a large number of alcohol, ethanol will dissolve the epithelial lipoprotein layer of the gastric mucosa, or destroy the mucus cells, resulting in damage to the gastric mucosal barrier, bleeding and edema, and even lead to vomiting blood, black stool. Stool routine, occult blood test and blood routine need to be improved to clarify whether there is gastrointestinal bleeding. If the stool is positive for occult blood, it is necessary to apply drugs such as omeprazole, ranitidine, aluminum thioglycollate and aluminum phosphate gel for acid suppression and protection of gastric mucosa under the guidance of professional doctors. Precautions In daily life, patients should pay attention to dietary hygiene, a light diet, avoid spicy, cold and other stimulating foods, it is recommended to abstain from alcohol or drink less, if you find physical abnormalities, you should go to the hospital in a timely manner, early detection, early treatment.