Piles (clinically known as hemorrhoids) basically, is the swelling of blood vessels near the anal opening and a sliding down of the lining of the anal canal. Piles are lumps that from inside the back passage and on the surface of the anus. The lumps are formed by increased pressure on blood vessels in the area, causing them to enlarge and swell. We understand that piles may not be a subject you feel comfortable talking about, but there is no need to suffer in silence.