Piles is another term for hemorrhoids. Hemorrhoids are collections of inflamed tissue in the anal canal. They contain blood vessels, support tissue, muscle, and elastic fibers.
Symptoms
A hard, possibly painful lump may be felt around the anus. It may contain coagulated blood. Piles that contain blood are called thrombosed external hemorrhoids.
After passing a stool, a person with piles may experience the feeling that the bowels are still full
Bright red blood is visible after a bowel movement.