The feeling of worms crawling in the anus may be due to intestinal roundworm disease, perianal eczema, and inflammation of the rectal anal canal, as follows: First, intestinal roundworm disease: especially in children, it may be due to intestinal roundworm disease, which lays eggs gathered near the anus, and there will be the feeling of worms crawling, which is very common in children with intestinal roundworm disease. Second, eczema around the anus: it may be caused by eczema around the anus and itching, there will also be the feeling of worms crawling, this situation in the clinic, as long as regular bowel movements, after cleaning the application of some nourishing ointment, will be able to effectively relieve the symptoms. Thirdly, inflammation of the rectum and anal canal: it may also be inflammation of the rectum and anal canal, including the symptoms caused by anal and anal papillitis, which is also more common in the clinic. In short, the above-mentioned symptoms, to go to the hospital in time to find the cause of the disease.