The terms ostomy and stoma are general descriptive terms that are often used interchangeably though they have different meanings. An ostomy refers to the surgically created opening in the body for the discharge of body wastes. A stoma is the actual end of the ureter or small or large bowel that can be seen protruding through the abdominal wall. The most common specific types of ostomies are described below.
The surgically created opening of the colon (large intestine) which results in a stoma. A colostomy is created when a portion of the colon or the rectum is removed and the remaining colon is brought to the abdominal wall. It may further be defined by the portion of the colon involved and/or its permanence.
The most common type of ostomy surgery, in which the end of the descending or sigmoid colon is brought to the surface of the abdomen. It is usually located on the lower left side of the abdomen.