Will Local Anesthesia to Remove a Mole On My Chest Puncture my Breast Implant?

Your safest option is to have a board certified plastic surgeon do the mole excision or better yet, if available, the surgeon who placed your implants could do the biopsy.  Either is skilled in knowing the correct depth to place the needle and how to avoid any problems.  So I believe your risk should be very low.  Incision in this area are known to be prone to hypertrophic scarring, so have your surgeon follow you closely afterward.

Without knowing your exact details and what kind of biopsy is planned, shave versus excision, why not have a plastic surgeon remove your mole?  Then you will have someone familiar with breast implants and your anatomy. This should ensure the local anesthesia would be placed into the appropriate plane.  Beware of a bad, ugly scar in this area, however.  All the best, "Dr. Joe" Gryskiewicz

Thank you for the question.

The chances of rupturing your breast implant is extremely small  if you are in the hands of a appropriately trained physician. However, the chances of you developing a unsatisfactory scar in the area that you have described is quite high;  make sure excision is really necessary/indicated.

Best wishes.