The feeling of insect crawling in the anus can be divided into the following cases: First, there are parasites in the intestines, such as intestinal pinworms, pinworms crawl around the anus when laying eggs, stimulating the anus and the surrounding intestinal wall, producing the feeling of insect crawling, and pinworm eggs can be discharged in the stool, it is recommended to go to the hospital for routine stool tests, and after the diagnosis is caused by pinworms, you can take deworming medication orally on an empty stomach to try to kill the parasites or expel the parasites from the body. Second, anal pruritus, generally fungal or viral infection, there will be itching around the anus, mostly like insects crawling, and more sweating around the anus, the formation of a local moist anaerobic environment, need to be examined to determine the targeted treatment, such as fungal infection antifungal treatment, viral infection antiviral treatment. The third, other perianal diseases, mainly to treat the primary cause, such as hemorrhoids, anal fistula, perianal abscess, etc., after the cure anal insect-like symptoms can be self-relieved, hemorrhoids can stimulate the anus and intestinal wall, resulting in the outflow of intestinal fluid to stimulate the surrounding skin, the formation of eczema or itching, available glyburide lotion to keep the anal dry hygiene to improve the symptoms, but try to cure hemorrhoids mainly.