Diarrhea after drinking alcohol may be related to intestinal flora disorders, acute enteritis and irritable bowel syndrome. 1. Intestinal flora disorders: Alcohol may stimulate and cause intestinal flora disorders, leading to food digestion disorders and diarrhea symptoms. 2. Acute enteritis:If the patient is due to a large amount of alcohol, at the same time eating stimulating food may cause intestinal mucosal congestion, edema, acute enteritis, which may lead to symptoms of diarrhea. 3. Irritable bowel syndrome:Patients may suffer from irritable bowel syndrome, a functional disorder syndrome. When alcohol consumption stimulates the intestinal tract, symptoms of indigestion and diarrhea may occur. Diarrhea after drinking alcohol may also be caused by other reasons, such as the presence of intestinal diseases (Crohn’s disease, ulcerative colitis, etc.), it is recommended that the patient as soon as possible to seek medical attention, under the guidance of the doctor to determine the cause of the disease and targeted treatment, and pay attention to a healthy diet, as little as possible to drink alcohol.