From Vice.com:
I’m covered in tattoos. At least 40 at this point, although I’ve lost any idea as to what counts as “one” tattoo anymore. I’ve thought about fading ink, bad linework, and the existential horror of a misspelled word, but I never wondered whether the ink itself might raise my cancer risk. Swedish researchers just gave me a reason to rethink that terrifying blind spot.
A new population-based study, published in the European Journal of Epidemiology, suggests tattooed people have a 29 percent higher risk of developing melanoma than people without tattoos, even after accounting for sun exposure, tanning beds, skin type, and other known risk factors.