In 2016, the European Science Open Forum (ESOF) held a panel discussion about tattoo science and policy. A dermatologist there, Jørgen Vedelskov Serup of Bispebjerg Hospital, said he’d cared for over 500 problem cases. He’s seen lumpy, papulonodular skin elevation (round raised bumps) from pigment overload, chronic inflammation, long-term light sensitivity and other side effects. And he raises an important question:
"As a doctor, if you do a cosmetic procedure, by law, you have to tell the patients the risks. It’s amazing that the same is not [universally] required in tattooing." Learn more here: https://masterpieceskinrestoration.com/blog/tattoo-safety-healthy/