I had open RNY on 2/3/2003 and believe me underwear is the last thing on your mind. I took enough to change twice a day and never had my bag from home open. No gown, no housecoat, no panties and no bra. My butt was seen by half of the hospital staff and I could have cared less and I am a very modest person. They did put another hospital gown on me backwards when I went to have an x-ray to check for "leaks" and when I finally was able to walk.