How to treat piles. Piles, also known as hemorrhoids, are swollen veins in the lower rectum or anus. They can cause discomfort, pain, and bleeding. Types of Piles: 1. *Internal piles*: Located inside the rectum, these are usually painless. 2. *External piles*: Located outside the anus, these can be painful. 3. *Thrombosed piles*: External piles that have developed a blood clot. Symptoms: 1. *Bleeding*: Bright red blood during bowel movements. 2. *Pain*: Discomfort or pain during bowel movements.