Can you get mastitis from nipple piercing?

Generally if proper aftercare it taken (cleaning the piercings daily as part of your personal hygiene routine) there should be no reason for mastitis to occur. Even with rough handling the nipple is quite tough and will handle normal (sexual) activities, however there may be some tenderness the next day. Mastitis is generally an infection that has entered the glands via the milk ducts due to oral contact during the lactation period. However rare to occur due to nipple piercings, I can't say I have encountered this as an issue for my clients over the last 15 years.