Why does a complete stomach removal mean that person gets colostomy bag?

A complete stomach removal, also known as a total gastrectomy, does not necessarily mean that a person will receive a colostomy bag. Colostomy bags are typically used in cases where there is a need to divert the flow of stool away from the rectum and anus, usually due to a blockage or removal of a portion of the large intestine.

In the case of a total gastrectomy, the stomach is completely removed, but the remaining parts of the digestive system, including the small intestine and colon, are usually left intact. This means that the process of digestion and absorption of nutrients can still occur, and the person may be able to pass stool normally.

A colostomy bag is more likely to be necessary in cases where there is a need to bypass or remove a portion of the large intestine, often due to conditions such as colorectal cancer or diverticulitis. In these cases, the colostomy bag serves as a temporary or permanent means of collecting stool and allowing the remaining digestive system to function properly.

It's important to note that the decision to perform a colostomy bag after a total gastrectomy is made on a case-by-case basis by the surgical team, taking into account the specific medical needs and circumstances of the individual patient.