What Is the Bump on My Nipple Piercing?
If you find a bump on your nipple piercing, this may be a sign that you have an abscess. A study published in the July 2010 edition of the “Journal of the American College of Surgeons” indicates that nipple piercing is one factor that puts you at risk for recurrent breast abscesses. These painful bumps can occur years after you first have your nipples pierced.