What causes diarrhea after drinking milk?

After drinking milk to show diarrhea, there are generally the following reasons, the first point, may be empty stomach caused by drinking milk, it is best not to drink milk on an empty stomach. The second point, milk may expire, check the date of production before drinking milk. The third point drink milk too cold, causing gastrointestinal discomfort, intestinal stimulation by cold, caused by diarrhea. Fourth point, the body lactose intolerance, lack of lactase in the body, drink milk will easily show diarrhea phenomenon, it is recommended to drink less. Fifth point, the abdomen is stimulated by cold, causing diarrhea.