There is a grain of flesh on the side of the anus, mostly considered in connection with hemorrhoids, perianal abscesses, boils and other diseases. 1. hemorrhoids: hemorrhoids are mainly divided into external hemorrhoids, internal hemorrhoids, mixed hemorrhoids, external hemorrhoids are generally exposed to the anal opening, 3, 4 internal hemorrhoids hemorrhoids nuclei are swollen, often protruding from the anal opening, so see the anus on the side of a small grain of flesh. 2. Perianal abscess: patients with perianal infection, resulting in anal gland obstruction triggered abscess disease, so the subcutaneous location around the anus appeared lumps, rupture of the anus can be seen in the mouth of a small grain of flesh, and the patient is more accompanied by obvious pain. 3. Boils: mainly due to bacterial infection of hair follicles, further formation of larger lumps, protruding from the anal skin, the anus can be seen on the side of the small pimples appear. It is recommended that patients with perianal discomfort symptoms, go to the hospital in a timely manner, relevant examinations and treatment to avoid aggravation of the condition.