Hi Hun I’m 2 weeks post op and I asked the same question before my op my nurse and surgeon refused and I’m glad now that I was advised to take them out as my nipples have doubled in size and are still very sore and were post op. I think some surgeons allow the plastic bars but if I’m honest I really think your best taking them out and getting them repierced! Check with your nurse she will find out for you but if you do buy plastic bars get the long ones as your nipples will swell! Good luck hun!! Xx