A piece of diced meat outside the anus, usually mainly due to the following reasons: 1, the patient may suffer from external hemorrhoids, external hemorrhoids is also a kind of hemorrhoids, is the manifestation of the varicose vein mass. When the patient’s abdominal pressure is enhanced or constipation occurs, it will cause the hemorrhoidal veins to stagnate and swell, thus appearing to prolapse out of the anus. If the external hemorrhoid is soft, it may be varicose external hemorrhoids or connective tissue external hemorrhoids, hard texture may be inflammatory external hemorrhoids or thrombosed external hemorrhoids. 2, outside the anus long meat Ding may also be the patient’s fissure caused by the sentinel hemorrhoids. 3, suffering from rectal polyps, when rectal polyps location is relatively low, the distance from the anus is relatively close to the anus will be very easy to get out of the anus, so that there is a swollen anus. 4, there may also be perianal abscess.