It depends on the doctor but when i had my gallbladder out i had a ton of piercings (15 in my ears, nose, navel, tongue and a fun one). I took all the ones out but one in my ears, put a clear plastic retainer in the nose and took out the tongue, fun one and navel out. I remember they said i couldnt keep the tongue ring in even with a retainer because of the tube they put down your throat and you shouldnt have anything metal on you. If you have anything like nipples or navel i wouldnt think you'd be able to keep clear plastic retainers in there but the nose should be ok. Id ask. I did end up losing a few piercings from the gallbladder surgery (navel since they take it out there there) and one in my ears. I havent been sleeved yet but i would ask your surgeon!