I have been trying to do research on what exactly I have but nothing really sounds the same. I noticed a bump on my anus a while ago (longer than I would like to admit). It did not hurt at all except for when I squeezed it. I figured out that by pushing on it, pus would drain out of it. I would wash it with soap and water on a wash cloth in the shower and it would be completely gone the next day. Then if I would wear a thong or something for a long period of time it would come back and I would repeat the process and it would go away. Today when I tried to drain it, bright red blood came out. Only a very little bit but it threw me off. Is this cancer?