Itching in the anus after anal fistula surgery is normal, mainly because the wound exudes and secretions flow around the anus, stimulating the itching discomfort of the perianal skin. But as the anal fistula wound slowly heals, the secretions will become less and less, so it is possible that the symptoms of anal itching will not appear. In some cases, the skin around the anus is more sensitive because of excessive discharge, and perianal skin eczema may occur. If there is eczema, it is necessary to treat perianal eczema with topical application of mometasone furoate cream and paregoric ointment. If itching occurs in patients without eczema, there are other patients because of the anal nerve, because in the process of wound healing, the wound is slowly repaired, the sensitivity of the nerve will become higher and higher, there will be itching, mainly depending on the severity of the itching, not very itchy this is a normal situation.