The excess tissue that is causing the bleeding is surgically removed. This can be done in various ways. It may involve a combination of a local anesthetic and sedation, a spinal anesthetic, or a general anesthetic. This type of surgery is the most effective in completely removing piles, but there is a risk of complications, which can include difficulties passing stools, as well as urinary tract infections.
Blood flow is blocked to the tissue of the hemorrhoid. This procedure is usually less painful than hemorrhoidectomy. However, there is a greater risk of hemorrhoid recurrence and rectal prolapse (part of the rectum pushes out of the anus).