First, the patient's obesity can easily lead to the humid environment around the anus, and feces or mucus can easily stimulate the skin around the anus, causing wet itching.
Second, if the elderly patients are undernourished and the anal sphincter is slack, feces or mucus can easily stimulate the skin around the anus, which will cause itching and discomfort, and sometimes produce a feeling of pain.
Thirdly, if the patient has fungal infection around the anus, such as perianal eczema, it will show radial chapping around the anus. After long-term scraping, it will lead to inflammatory exudation, so these pus will appear around the anus, causing discomfort in the anus damp and anal pruritus.
Sometimes taking some drugs orally for a long time, such as quinidine and colchicine, will also lead to acute anal pruritus, and some mucus will be produced locally, causing discomfort of anal dilatation.
Therefore, there are many reasons for the anus damp. To keep the anus clean, pay attention to diet, avoid spicy or irritating food, and then treat the symptoms.