Piles (haemorrhoids) are enlarged blood vessels that you can get inside or around your anus. They’re usually small, round, discoloured lumps. You might be able to feel them on your anus or hanging down from your anal canal.
A thrombosed hemorrhoid will appear as a lump at the anal verge, protruding from the anus and will be dark bluish in color because of the blood clot contained inside the swollen blood vessel. A non-thrombosed hemorrhoid will appear as a rubbery lump. Often more than one swollen hemorrhoid appears at the same time.