The itchy anal opening is often caused by the following reasons: first, hemorrhoids: when the patient has mild hemorrhoids, it can appear itchy and uncomfortable in the anal area, while there will also be the symptoms of dampness and uncleanliness, you can go to the hospital’s general surgery or anorectal surgery for clarification. If the disease is the disease, you need to actively adjust the diet, such as try not to drink drinks containing alcohol, do not eat too spicy food, but also need to cooperate with the drug sitz bath treatment. The actual actual a lot of people are usually using diluted potassium permanganate water or herbal preparations, generally twice a day, divided into morning and evening, each time 10-15 minutes. The second, perianal eczema: this is not diligent change of underwear and do not clean the anus, can be treated with local rubbing erythromycin ointment. Third, intestinal parasitic disease: for example, ascariasis, need to check the stool routine and so on for clarification.