An ostomy bag or a pouch is worn on the abdomen to collect stool as it leaves the body through the stoma. However, there are some significant differences between an ileostomy and a colostomy.

The stool draining from an ileostomy will be liquid. Colostomy. A colostomy is an opening that connects the large bowel, or colon, to the skin. The stool draining from a colostomy will be pasty.

Medicare considers ostomy bags and related supplies as prosthetic ... Medicare Part B covers ostomy supplies you may need if you’ve had an ileostomy, colostomy, or urinary ostomy.