Diarrhea that occurs when the wind blows is often considered to be caused by irritable bowel syndrome. Patients with irritable bowel syndrome have abnormal gastrointestinal dynamics and hypersensitivity of the internal organs. Irritable bowel syndrome is a functional gastrointestinal disease, which is associated with intestinal microecological imbalance, infectious factors and psychological factors, without organic lesions, and often manifests as abdominal pain with changes in bowel habits, such as diarrhea or constipation. Patients with diarrheal irritable bowel syndrome usually have urgent bowel movements, with paste-like or watery stools, and frequent bowel movements of about 3-5 times a day, but without pus and blood. Diarrhea may also be caused by an imbalance of intestinal flora when the intestinal flora is imbalanced. When the gastrointestinal tract is poorly functioning, diarrhea may be manifested once the abdomen is cold. In addition, organic diseases, such as ulcerative colitis and Crohn’s disease, should be considered. Therefore, when diarrhea is present, patients can first observe the stool properties by themselves, and if there is pus and blood, they should promptly go to the hospital for a clear diagnosis to exclude organic diseases.