Anal bleeding, do not be nervous when this occurs, there are the following reasons: First, it is possible to suffer from anal fissure, long-term dry stool can easily lead to anal canal skin fissures, and thus the surface with blood when wiping stool, sometimes it can be dotted or dripping, the color is bright red. Second, if suffering from a history of foreign body injury, such as foreign body invasion into the anorectum, which can lead to blood in the stool, perianal visualization can make a clear diagnosis. Thirdly, if you have previous hemorrhoids, the hemorrhoid nucleus is prone to bruising and swelling after eating a lot of stimulating foods such as chili peppers and drinking a lot of alcohol, which can lead to bleeding and bright red blood in the stool. There are many reasons for anal bleeding, and the cause should be analyzed combined with rectal examination and, if necessary, anoscopy for a clear diagnosis.