Irritable bowel syndrome is not incomplete stool, some types such as diarrhea type of irritable bowel syndrome can be manifested as incomplete stool, and some types such as constipation type of irritable bowel syndrome is manifested as constipation. Irritable bowel syndrome is a kind of abdominal pain with defecation habit change as the characteristics of common functional gastrointestinal disease, no organic lesions, according to the different types of different defecation habits and fecal characteristics of the change is also different, so irritable bowel syndrome is not bowel movement, irritable bowel syndrome is divided into diarrhea type, constipation type, mixed type and indeterminate type. 1. Diarrhea type: the bowel movement is more urgent, the feces are paste-like or dilute watery, usually 3~5 times a day, and up to more than 10 times during the severe attack, and the symptoms of incomplete stool will appear. 2. Constipation type: often accompanied by difficult defecation, dry feces, small amount of feces, in the form of sheep’s dung or thin rods, without incomplete bowel movement. 3. Mixed type: often experiencing constipation and diarrhea at different times, may present with incomplete stool. 4. Uncertainty: The patient’s bowel habits cannot be accurately categorized into any of the diarrhea, constipation, or mixed types, and may not have incomplete bowel movements. It is recommended to go to the hospital in time when the patient has obvious discomfort.