The types of irritable bowel syndrome diseases are diarrhea type, constipation type, mixed type and indeterminate type. 1. Diarrhea type: often manifested as rapid defecation, feces in paste or dilute, usually about 3 to 5 times a day, a few serious episodes can be more than ten times, can be with mucus, but no pus and blood. 2. Constipation type: there is often difficulty in defecation, the feces are dry and small in amount, in the form of sheep’s dung or thin rod, with mucus on the surface, often accompanied by abdominal distension and a feeling of impurity in defecation. 3. Mixed type: it is often manifested as the alternation of abdomen and constipation. 4. Indeterminate: the patient’s stools are of indeterminate character, which may be paste-like, or dilute, watery, mucus, etc. The patient is consistent with the irritable bowel syndrome. The patient meets the diagnostic criteria of irritable bowel syndrome, and his or her bowel habits do not meet any of the three types mentioned above. When irritable bowel syndrome strikes, it is recommended to consult the gastroenterology department of a regular hospital in time to clarify the condition and actively treat it.