What is ileoanal reservoir surgery?

J pouch. Ileoanal reservoir surgery is something used if a person needs their entire colon removed due to disease such as ulcerative colitis. It is an internal reservoir made from the small bowel at surgery to help control your bowel function after colon removal surgery. J pouch is one form, and there have been some other pouches made.
Colon replacement. For people who have lost their colon due to surgery and this is used to work as a sort of colon.