Piles (haemorrhoids) are swellings that develop inside and around the back passage (anal canal). There is a network of small veins (blood vessels) within the lining of the anal canal. These veins sometimes become wider and engorged with more blood than usual. The engorged veins and the overlying tissue may then form into one or more swellings (piles).Piles are collections of tissue and vein that become inflamed and swollen.The size of piles can vary, and they are found inside or outside the anus.Piles occur due to chronic constipation, chronic diarrhea, lifting heavy weights, pregnancy, or straining when passing a stool.
- 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.
- The area around the anus is itchy, red, and sore.
- Pain occurs during the passing of a stool.
- Excessive anal bleeding, also possibly leading to anemia.