A small ball of flesh grows in the anus and is also painful mainly consider two conditions: 1, thrombosed external hemorrhoids, mostly due to hemorrhoids fall off outside the anus to form an imbedded, resulting in further aggravation of hemorrhoidal venous stasis and expansion, thus forming thrombosed external hemorrhoids. The clinical manifestation is a swollen sebaceous gland, similar to a small meatball, with severe pain. 2, sebaceous cyst and infection, the skin near the anus is rich in sebaceous glands, due to the special anatomical location of the anus is very easy to infection, the clinical manifestation is a swollen sebaceous gland, similar to a small meatball, accompanied by severe pain. In this case, anal irrigation and cephalosporin anti-infection treatment should be given, and if a sebaceous abscess is formed, sebaceous abscess incision and drainage should be performed. All in all, when you find a small ball of meat in the anus and pain, you should seek medical attention and actively cooperate with the specialist to avoid further progress of the disease.