The term "-ostomy" refers to a surgical procedure where a hole is created in the body. This can be done for various reasons, such as creating an opening for waste to exit the body (colostomy, ileostomy), creating an opening for urine to be diverted (urostomy), or creating an opening for the delivery of nutrients (gastrostomy, jejunostomy). In all these cases, the common factor is that a surgical incision is made to create an opening or stoma, allowing for the appropriate bodily function.