Frequent diarrhea can be treated by gastroenterology, gastroenterology and general internal medicine. 1. Gastroenterology: frequent diarrhea may be caused by acute enteritis, chronic enteritis, ulcerative colitis, Crohn’s disease and other diseases, you can go to the gastroenterology department, do colonoscopy, fecal routine, barium contrast and other tests, to clarify the cause of the disease and then treatment. 2. Gastroenterology: Diarrhea caused by acute and chronic enteritis, ulcerative colitis, Crohn’s disease, and intestinal cancer belongs to the category of gastroenterology, so you can consult the gastroenterology department for treatment. 3. General Internal Medicine: If the hospital is not detailed, frequent diarrhea can also be listed in the general internal medicine, to identify the cause of the disease and then give treatment. Frequent diarrhea, it is recommended to consult a doctor in a timely manner to identify the cause of the disease, so as to avoid delaying the condition.