Hello..i Have A Pea Shaped Lump Inside The Anus,,but On

Hello..i have a pea shaped lump inside the anus,,but on the side of the hole. Its not really painful..but feels sometimes like a stretched bit of skin. I noticed it about 5 days ago,,but tonight i saw blood seeping through my trousers and its still a bit bloody..when i wipe bottom. Anything to do,,or it goes away automatically.