I am 24 years old female. I have one lump from inside anus to pernium. When I touche the lump it is a thick skin .inside that at one side feels like something is there.in lower part one is developing, it is like sheat. Earlier blood was in stool, I applied nitroglycerin ointment, now there is no pain or blood in stool. I think my stool has varying size. Please tell me what I have to do to eliminate lump permanently. Is surgery is the only solution. If surgery is done how much time will take to get better.