The first thing to consider is these possibilities: 1, anal warts, experienced doctors can see at a glance is not warts. 2, anal flat warts, is a 2 stage syphilis rash of 1, if a flat wart, consider the possibility of 2 stage syphilis, need to test the blood, check there is no syphilis. 3, there are hemorrhoids, but also can be found in the anus around the meat lumps. 4, rare Diseases, such as anal polyps can also appear, but all need a doctor to help patients to identify.