Anal itching and dampness, it has many causes, as follows: 1, the most common one is perianal fungal infection, resulting in a lot of perianal skin chaps, some inflammatory exudation on the surface, resulting in perianal skin itching and occasional painful discomfort. 2, there may be dry stool, resulting in damage to the anal canal skin and the formation of fissures, this kind of stimulation due to feces, etc., can also cause anal itching and dampness. 3, if the anal Sphincter muscle relaxation will lead to the flow of stool and secreted mucus in the rectum to the skin around the anus, which can stimulate the skin around the anus to react, leading to anal itching and dampness. Therefore, there are many reasons for anal itching and dampness, which should be visualized plus rectal diagnosis, and if necessary, anoscopy to clarify its cause and actively take the right treatment.