Blood In Stoll Dark Lump Right Next To My Bum Hole?

Dark lump right next to my bum hole? - blood in stoll

Today I felt a little pain than washing a point where I felt between my cheeks, I felt a little bump bub, look in the mirror and his dark Mans as a small black mass is no blood in the Stoll. The pain is a lump, and when I touched that feels pain and is now a little bigger. 21 years in