/www.tsa.gov/travel/frequently-asked-questionsI have an ostomy pouch, do I have to remove it for screening?"You can be screened without having to empty or expose the ostomy pouch during advanced imaging technology, metal detector and pat-down screening. Please inform a TSA officer that you have an ostomy pouch before you enter the screening area. The ostomy pouch is subject to additional screening and may require you to conduct a self pat-down of the pouch outside of your clothing, followed by a test of your hands for any trace of explosives. You may also undergo a standard pat-down of areas that will not include the ostomy pouch."
You can also get a medical identification card from the TSA so you don't have to talk about
it out loud.
I'd read more about
your rights because most of the TSA screeners are clueless and think that they can do whatever they want.