There are many reasons for anal growth, usually the following: anal polyps, hemorrhoids, cysts and so on. 1. Anal polyps: anal polyps are swellings that grow from the rectal mucosa or anal canal, usually caused by feces, inflammation and other chronic stimuli, most of which can be treated by surgery. 2. Hemorrhoids: Hemorrhoids are usually associated with poor diet, bowel habits, common symptoms of blood in the stool, anal pain, the first thing you need to do is to change the poor diet, bowel habits, and then combined with drugs or surgical treatment. 3. Cysts: anal cysts are mostly associated with perianal infections, there will be persistent swelling, pain or high fever, patients with mild symptoms can take anti-inflammatory and anti-infective drugs under the guidance of the doctor for treatment, if the cysts are relatively large need to go to the Department of Anorectology for surgical incision and drainage. After the discovery of anal long a grain of rice, should promptly go to the hospital for examination, differential diagnosis, according to the relevant causes of targeted treatment, to avoid delaying the condition.