Anal itching is not necessarily cancer. Anal itching is only a localized symptom around the anus and is not directly related to cancer. The diseases that cause anal itching are anal pruritus, the appearance of anal eczema or perianal acral warts, hemorrhoids and anal fissure. When itching occurs in the anus avoid scratching hard with your hands to avoid scratching and causing infection. You can go to the anorectal department of the hospital for anal examination and apply anti-swelling and anti-itching ointment under the guidance of the doctor, and if necessary take glucocorticoid ointment in combination will have a good effect. You can also use potassium permanganate water in a warm water bath to relieve the itching symptoms. You should rinse the anal area after each bowel movement to ensure the hygiene of the anus and effectively relieve the itching.