There is a hole at the bottom of my nipple with a white wire. What could this be? Just under a year post-op

I suspect it is a permanent stitch that is poking out and not an actual wire. Go back to your surgeon and he/she can remove it/.

Dear Jordan11.,
I understand your concern. However, without a proper assessment, it would be difficult to determine what went wrong. It is best that you visit your plastic surgeon for further assessment or ask for a second opinion. Only after a thorough examination, you can get proper recommendations and advice.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Hi and welcome to our forum!Without a photo, it is hard to tell. The wire is most likely a suture. If you underwent a lollipop or full pattern breast lift, it most likely represents a retained suture, which can usually easily be extracted. If you underwent a Benelli (periareolar) lift, it may the suture which prevents the spreading and enlargement of the areola. In either case, keep the area clean and seek reevaluation by your plastic surgeon.Best wishes...