Farting and dampness may be caused by dietary factors, anal sphincter relaxation and anorectal polyps. 1. Dietary factors: it is possible that the patient usually eat spicy and stimulating food, such as chili, pepper, pepper and mustard; often drink alcohol, resulting in heat and dampness in the large intestine and so on. 2. Anal sphincter relaxation: it is easy to induce anal overflow or overflow of stool, and if the underwear worn by the patient is not breathable enough, it will cause farting and anal moist symptoms. 3. Anorectal polyps: easily induce the production of secretions, once farting, it will overflow out of the anus, causing moist symptoms. Diet caused by the need to actively adjust the dietary structure; disease caused, it is recommended that the patient is necessary to actively go to the regular hospital to receive examination and treatment, according to the results of the treatment.