An ostomy (or stoma) is a surgical opening made in the skin when a problem is not allowing a part of the body to function well. A tracheostomy is done for breathing problems, while an abdominal (belly) ostomy can allow wastes to leave from the intestines (ileostomy or colostomy) or from the bladder (urostomy). Get practical tips for managing?a tracheostomy, colostomy, ileostomy, or urostomy.