After the stool small abdominal pain anal distension, the patient needs to go to the anorectal department, general surgery department, etc. for examination and treatment. The symptoms of pain in the abdomen with anal distension after defecation may be due to lesions in the rectum, anus, sigmoid colon and other parts of the body, such as ulcerative colitis, hemorrhoids, rectocolonic tumors and other diseases can cause pain in the abdomen with anal distension after defecation. At this time, the patient should be timely to the anorectal department or general surgery for examination. Patients can use anoscopy, enteroscopy for examination, and at the same time for anal visualization, anal finger diagnosis to determine whether the anus and intestines have lesions. Patients need a cleansing enema to remove fecal matter from the intestines before the examination to ensure smooth and accurate results. After bowel movement, abdominal pain and anal distension, you need to go to the regular hospital in time for examination, to clarify the cause of the disease, and give treatment as soon as possible to avoid delaying the condition.