Anal bleeding with paper wipe, among the clinical include the following causes: first, hemorrhoids; in the clinical may be due to hemorrhoids caused by bleeding, especially internal hemorrhoids caused by bleeding, often fresh blood after the stool, not mixed with feces, sometimes bleeding is relatively large. Second, rectal polyps: it is possible that bleeding caused by rectal polyps, especially in constipation feces long-term stimulation of rectal polyps, may also lead to anal bleeding. Third, cancer patients: clinically more often seen in older patients, such as colorectal cancer patients, often appear pus and blood stool, after defecation when wiping with paper is also prone to bleeding after the stool. In short, post-poo bleeding must be seen in hospital in time, and the specific cause of bleeding should be found according to the improvement of relevant tests and corresponding biochemical indicators, and appropriate symptomatic treatment should be given.