What’s wrong with the itchy anus sometimes?

There are many reasons why the anus sometimes itches: first, there may be anal fissures, such as anal fissures is a dry stool, which leads to perianal skin damage, feces and mucus, easy to erode the trauma of the anal fissure thus leading to perianal itching; second, if the mixed hemorrhoids repeatedly prolapse out of the anus, sometimes it will secrete mucus, feces may follow the nucleus of the hemorrhoids out of the perianal skin, local stimulation can easily cause itching. The third, some food can also cause perianal discomfort, such as we eat a lot of spicy or stimulating food or some seasoning, and a lot of alcohol can also cause itching, usually eat drugs can also lead to acute anal itching, such as colchicine, quinidine, and artificial fibers, usually paint used to paint the wall, some seafood, can cause anal itching.