Tissue breakdown: In very rare instances, the tissue used to reconstruct the nipple won't get enough blood and some of the tissue might die. If this happens, your surgeon will have to trim away the dead tissue and reconstruct the nipple again. This is done in an operating room under general anesthesia.
Nipple flattening: In rare instances, the reconstructed nipple may flatten out more than expected. If this happens, your surgeon may have to redo the nipple reconstruction and reinforce it with a graft of scar tissue, fat, or dermal matrix material to reduce the risk of flattening.