There are especially many reasons for bleeding in the stool, the first one could be bleeding hemorrhoids, such as dry stool or increased abdominal pressure leading to swelling of the hemorrhoid nucleus, poor venous reflux, rupture of the hemorrhoid nucleus and formation of blood in the stool. If the amount of bleeding is not large, you can carry out conservative as well as medication treatment, pay attention to your diet, avoid spicy and stimulating foods, take a sitz bath with warm salt water or 1:5000 potassium permanganate solution to promote local circulation around the anus, and apply hemorrhoid suppositories or hemorrhoid cream for treatment, which can play an anti-inflammatory and anti-swelling role. If the amount of blood in the stool is relatively large, surgical excision, such as mole excision, should be considered. The second reason, it may be an anal fissure, such as dry stool leading to skin fracture of the anal canal, so that when wiping the stool, the surface of the stool is easy to carry blood. If the symptoms are mild, conservative medication can also be used. If chronic anal fissure is recurrent and the symptoms are severe, surgery, i.e. anal dilation and fissure removal, should be performed.