1. Surgery to remove the colon and rectum.
2. The surgical removal of the entire colon and rectum and the creation of an end ileostomy.

An ileostomy is an operation that makes it possible for feces (human wastes) to leave the body, after the colon and rectum are removed, in which an opening is made in the abdomen and the bottom of the small intestine (ileum) attaches to it.

Another explanation of an ileostomy states that it is an opening into the ileum, the lower part of the small intestine, from the outside of the body; therefor, an ileostomy provides a new path for waste material to leave the body after the colon and the rectum have been removed.