I have a dermal piercing on my face and I want a BA -- will it affect my surgery? (Photo)

You will be fine to leave the piercing in place. They may make you sign a form indicating that you are wearing metal and electrocautery will be used but it is remote from the site of operation and I don’t think it poses a significant risk.
 The scar from removing the piercing will be much worse then the risk of an electrical burn as you have to make a small incision to remove the piercing because of the anchor at the bottom of the piercing.

Thank you for your question.  Surgical protocol is that jewelry is removed prior to surgery due to risk of infection or complications from electro cautery devices.  My advice is to consult with a board certified plastic surgeon to discuss your particular circumstances.  Best of luck.