If there is localized anal swelling or swelling during urination or bowel movement, it may be due to localized intestinal inflammation in the anal canal, or the loosening of the rectal mucosa, which compresses the local nerves in the anus and causes a feeling of swelling. If mucosal irritation is caused by inflammatory diseases of the intestine, anti-inflammatory symptomatic treatment with Chinese herbal medicine or anal mesalazine suppositories can be chosen. If there are organic lesions of the rectal mucosa, especially when there is prolapse of the rectal mucosa, the local prolapsed mucosa presses on the anal opening, thus causing the patient to suffer from falling and suffocating. It is necessary to pay attention to not squatting for a long time and defecating for too long, which can easily aggravate the condition or trigger the occurrence of the condition.