The main reasons for anal itching and bleeding are as follows: 1. Hemorrhoids: It belongs to the most common disease of the rectal perineum, especially when hemorrhoids are combined with infection, it is more likely to have local itching as well as pain, and its bleeding is usually fresh blood dripping from the stool. 2. Rectal inflammation: Itching is caused by inflammatory exudation that stimulates the skin of the perineum, and the stimulation of inflammation leads to local intestinal mucosa congestion and edema, which can easily cause bleeding when defecating. 3, 3, rectal ulcers: ulcers can be caused by tuberculosis infection, but also Crohn’s disease, ulcerative colitis. If you find anal itching and bleeding, it is advisable to go to a regular specialist hospital, especially to find an anorectal doctor to improve the examination and make a clear diagnosis.