The clinical manifestations mentioned by the patient can be summarized as the following causes: 1. The situation is caused by hemorrhoids, for the relatively mild thrombosed external hemorrhoids initial manifestations, in fact, are such small bumps, which are caused by local vascular varicosities. 2. Local polyps, mainly related to local skin and clothing friction, such small bumps do not need to be dealt with, if patients feel uncomfortable, they can go to the hospital for Local laser treatment, patients are not prone to relapse. 3, may be related to sexually transmitted diseases. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things.