Anal itching is a common local pruritus and a localized neurofunctional skin disease. Generally, it is only confined to the area around the anus, and in some cases, it may spread to the perineum, vulva, or the back of the scrotum.
Clinically, itching and burning pain after scratching are the main symptoms.

The cause of primary anal itching is currently unclear and is generally related to factors such as excessive mental stress or excitement, decreased endocrine function, or genetics.
Secondary anal itching is related to excessive perianal secretions, medications, and intestinal parasites.
