Changes in the shape of stool are often manifested as an increase in the number of stools, thinning of stools, and the appearance of bloody stools in the process of abdominal pain. The following are some of the reasons for the change in stool shape: 1. Consider gastrointestinal tract dysfunction, there will be a change in the shape of the stool. 2. intestinal tumors, intestinal tumors are the main cause of the change in the shape of the stool, so once there is a change in the shape of the stool, patients must be advised to improve the e-colonoscopy. 3. inflammatory bowel disease, such as ulcerative colitis, Crohn’s disease, also often manifested as a change in the shape of the stool. It is recommended to improve the immunological indicators and e-colonoscopy.