What is the term for the opening of an ostomy on the abdominal wall?

The term for the opening of an ostomy on the abdominal wall is "stoma." A stoma is a surgically created opening that allows for the diversion of waste from the body, typically as part of an ostomy procedure. When a section of the intestine is brought to the surface of the abdomen, the stoma serves as an exit point for bodily waste, which is then collected in an ostomy bag.

Understanding the role of a stoma is crucial for individuals who have undergone ostomy surgery, as it relates directly to their post-operative care and the management of their specific health needs. The stoma itself can vary in size and color based on individual circumstances, and proper care is necessary to maintain hygiene and prevent complications.

The other terms do not correctly define the opening of an ostomy. An ostomy bag is used to collect waste, while a portal generally refers to an entry point or gateway, which is not specific to ostomy procedures. A fistula, on the other hand, is an abnormal connection between two body parts, which is distinctly different from the purpose and formation of a stoma. Understanding these terms helps clarify their specific functions and the context in which they are used in health science.