Ostomy An ostomy is a surgery that creates a new opening in your body for waste to come out.. Types of ostomy Colostomy Redirects part of your colon (large intestine)to the stoma in your abdomen Ileostomy Redirects your ileum (the end of your small intestine) to your stoma Urostomy  Redirects your ureters (the tubes that carry pee) to your stoma