The reason of anal itching, where anus is always very itchy recently, what are the reasons for

Common causes of anal itching include: First, anal and rectal diseases, such as anal fissure, anal sinusitis, anal fistula, anal papillitis, anal incontinence, etc. These diseases can lead to increased anal secretions, causing anal moisture itching. Second, perianal skin diseases, such as anal eczema, sexually transmitted diseases, various warts. Third, endocrine diseases, due to the high sugar content of diabetic skin, can stimulate nerve endings, causing itching. The fourth is mental factors, if the patient has neurasthenia, mental stress and other neurological disorders, can also induce perianal itching.