Milk may cause diarrhea. If taking cold milk and other food factors stimulate the gastric mucosa, or when the patient himself has gastric ulcer, ulcerative colitis and other diseases, it is more likely to lead to diarrhea. 1. Food factors: taking too much milk, cold milk or with fruits and other intake at the same time, easy to increase the burden on the stomach and intestines, stimulate the gastrointestinal mucosa, affecting the digestion and absorption of food, resulting in indigestion and other symptoms, causing abdominal distension, abdominal pain, diarrhea, loss of appetite and other phenomena. 2. Pathological factors: If you have digestive diseases, such as gastritis, gastric and duodenal ulcers, lactose intolerance, gastric cancer, ulcerative colitis, cirrhosis of the liver, pancreatitis, etc., after taking milk, due to the low digestive capacity of the body, resulting in diarrhea, nausea, vomiting and other symptoms. Drinking milk does not necessarily lead to diarrhea, once diarrhea and other symptoms, it is recommended to consult a doctor in order to clarify the diagnosis, under the guidance of the doctor for targeted treatment.