Diarrhea refers to diarrhea, every morning diarrhea may be due to abdominal cold, vegetative nervous system dysfunction, dyspepsia, chronic enteritis and other reasons. 1. Abdominal cold: some people sleep at night when the cover is too thin or do not cover the quilt, may lead to abdominal cold, stimulation of the gastrointestinal tract, causing gastrointestinal smooth muscle spasm, so that the intestinal peristalsis increased, resulting in diarrhea and other symptoms. 2. Phytoneurological disorders: often late at night, work stress, etc., may cause phytoneurological disorders, resulting in sympathetic nerve excitation, may also appear gastrointestinal dysfunction, manifested as diarrhea every morning symptoms. 3. Indigestion: some people’s stomach is slow, the food eaten at night is not fully digested, stimulating intestinal peristalsis to speed up, which may also lead to diarrhea every morning. 4. Chronic enteritis: due to inflammation for a long time on the intestinal mucosa caused by irritation, may also lead to diarrhea every morning, may also be accompanied by abdominal pain symptoms. In addition to the above reasons, bacterial infection and intestinal cancer may also lead to the above symptoms. It is recommended to go to the hospital in time, combined with relevant programs of examination, under the guidance of professional physicians to clarify the cause of the disease.