Hey , im am 8 weeks post op and i am wearing underwire bras and have been since about 6 weeks post op. My surgeon said i could wear any bra from six weeks just as long as it felt comfortable. He also told me to check under my boobs and scar after about an hour to check for any marks that might indicate that the bra had been rubbing or digging in as i am still quite numb after surgery. Hope this helps 😊.