The anus is like a worm moving inside, commonly in the following cases: a. There are really worms in the anus, similar to roundworms, especially children are more common, often eat raw and cold food or barbecue and other people are more common, this situation to the hospital for examination, the symptomatic use of deworming drugs can be immediately relieved. Second, anal pruritus, which is also clinically more common, resulting in worms crawling itchy feeling one of the diseases, this situation is often due to the inflammation caused by anal sinus infection, part of the viscous secretions attached to the perianal skin, resulting in local itching feeling. Three, perianal eczema, perianal eczema is also one of the more common clinical perianal skin disease, the use of drugs containing hormones to apply to relieve. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things.