The small meatball outside the anus may be a perianal mass caused by external hemorrhoids shaped like a small meatball, or a prolapse of internal hemorrhoids, and possibly a prolapse of rectal polyps or a prolapsed anal papilloma. 1. Inflammatory external hemorrhoids around the anal margins of the mass is inflammatory mass, its surface may be accompanied by inflammation oozing, pressure pain. 2. Varicose external hemorrhoids around the anal margin of the mass for the texture of the soft round or oval mass, accompanied by its internal varicose veins. 3. Thrombosed external hemorrhoids will also form a lump around the anal verge shaped like a small meatball, usually painful and obvious. 4. internal hemorrhoidal prolapse is seen in the latter three stages of internal hemorrhoids, generally speaking, more first blood in the stool, after the prolapse of the material, out of the anus to form a small ball of flesh, the more to the late prolapse the more serious. 5. Rectal polyp prolapse is usually round or oval, shaped like a small meatball, color purple or bright red, easy to bleed when touched. 6. Anal papilloma may prolapse out of the anus during defecation, which is a white sarcoma of varying sizes and characteristics, and may appear as a small meatball. There are many specific reasons for the formation of small meatballs outside the anus, and it is suggested that patients should seek medical treatment in time to clarify the causes of the disease and carry out corresponding treatment as early as possible.