In a double-barrel colostomy, which stoma is responsible for stool passage?

In a double-barrel colostomy, the proximal stoma plays a critical role in the passage of stool. This is because the proximal stoma is the one that is brought to the surface of the abdomen and is connected to the functioning part of the bowel, allowing for the elimination of stool.

The distal stoma, conversely, is typically referred to as the mucous fistula. It does not serve the purpose of stool passage; instead, it allows for the secretion of mucus and may remain inactive in terms of waste elimination, as its role is primarily to keep the distal intestine clear and to prevent any complication that could arise from stool accumulation in that segment.

Understanding the layout of a double-barrel colostomy is key for recognizing the function of each stoma. The proximal stoma actively manages the bowel contents while the distal stoma assists in maintaining health and comfort for the patient without direct involvement in fecal matter elimination.