What Causes Itching Around the Anus?

Perianal pruritus is associated with diseases of the anus and rectum. Anal conditions—such as proctitis and perianal eczema—can cause moisture accumulation around the anus, leading to itching. Hemorrhoids, particularly when enlarged, may irritate the perianal skin, resulting in symptoms including pruritus and pain. Anal fissures may also produce similar symptoms. Rectal disorders—including rectal prolapse and rectal tumors—can likewise cause perianal pruritus.