Blood on paper after stool is usually not a major risk, but further examination of the cause of the blood is needed. Consider the presence of perianal diseases, such as hemorrhoids, rectal polyps, anal fissures, etc. The hemorrhoids are divided into internal and external hemorrhoids, and the diagnosis can be confirmed by touching the nucleus of the hemorrhoid on rectal finger examination, and mild hemorrhoids can be treated with medication, while serious ones need to be treated with surgery. Rectal polyps can be diagnosed by rectal examination and proctoscopy, and can be treated by electrocautery under colonoscopy. Anal fissures can be diagnosed by rectal examination and can be treated with medication in mild cases or surgery in severe cases. It may also be caused by constipation, dry stools, too dry to solve the stool, thus appearing rectal mucosa damage, causing bleeding. In this case, you need to drink as much water as possible, eat more fruits and vegetables, so that their stools remain moist and easy to solve.