A cold diarrhea is usually associated with increased intestinal peristalsis, weakness of the spleen and stomach, reduced immune function and other factors, the reasons and related recommendations are as follows: 1. Increased intestinal peristalsis: some people are more sensitive to cold stimuli, and after the cold human sympathetic parasympathetic nerve dysregulation and endocrine abnormalities make the small intestine and colon peristalsis abnormal. The intestinal tube will appear in a state of spasm, intestinal tube spasm will stimulate the intestinal wall leading to the acceleration of intestinal peristalsis, intestinal peristalsis increases, thus inducing diarrhea. At this time, the patient should adjust the diet structure, do not eat cold, stimulating, indigestible food. Smoke, alcohol, strong tea, coffee, etc. should also be avoided, and the diet should be light and easy to digest. Usually should pay attention to abdominal warmth, enhance exercise, increase the strength of the abdominal muscles, improve immunity; 2, weak spleen and stomach: weak spleen and stomach, acute and chronic enteritis, irritable bowel syndrome patients, such people own gastrointestinal function is not good, a cold diarrhea phenomenon. Usually should pay more attention to warmth and cold, avoid eating cold things, available warm water bags abdominal hot compresses. Usually drink more hot water. It is recommended to go to the hospital gastroenterology department to do electronic gastroscopy and electronic colonoscopy to find out whether there are organic lesions of the gastrointestinal tract. If there is chronic gastritis, chronic colitis and other gastrointestinal diseases, should be actively treated; 3, immune function is reduced: people in the cold season cellular immunity and humoral immune function is reduced, antiviral power is reduced more vulnerable to viruses. Infants and young children because the intestinal immune function system is not fully developed, in the cold season will be easy to be invaded by viruses, the possibility of diarrhea. It is recommended to exercise more to strengthen the immune system.