Which procedure involves a fecal drainage bag?

The procedure that involves a fecal drainage bag is the ileostomy. An ileostomy is a surgical procedure that involves creating an opening (stoma) from the ileum, which is the last part of the small intestine, to the outside of the abdominal wall. This is done to allow waste to bypass the colon entirely, which may be necessary for patients who have conditions such as inflammatory bowel disease, certain cancers, or injuries to the intestines.

Following an ileostomy, stool is collected in a bag attached to the stoma, hence the term "fecal drainage bag." This device is essential for managing waste in patients following the surgery, allowing them to lead a more normal life by containing and collecting the output.

In contrast, other procedures listed do not typically utilize a fecal drainage bag. A herniotomy involves the removal of a hernia and does not create an external fecal diversion. A colostomy, while it does involve a stoma and can also involve the use of a drainage bag, is specifically related to the large intestine rather than the small intestine. An appendectomy is the surgical removal of the appendix and does not deal with fecal drainage or stoma creation.