Dampness near the anus, in addition to the problem of lifestyle habits, is likely to be too much secretion from the anal opening. Some people have more developed sweat glands or a larger amount of labor, resulting in more perianal sweat outflow and no timely cleaning, which can cause perianal dampness. In addition, due to conditions such as perianal eczema, rectal and anal canal abscesses, and prolapsed internal hemorrhoids, which cause excessive anal discharge. Perianal eczema can result in thickening of the skin at the anal opening, hyperpigmentation, and excessive perianal secretions, causing the anal opening to be in a damp state for a long time. Rectal anal canal abscess, especially after the abscess breaks down, will exude through the anal opening and infiltrate the anal opening for a long time. Internal hemorrhoid prolapses, the nucleus and enlargement of internal hemorrhoid prolapse out of the anus and cannot be returned, resulting in poor closure of the anus. The presence of partial rectal mucus or fecal exudation can also cause symptoms such as dampness and itching of the perianal skin.