One in four Swedes already adorns their bodies with tattoos, and this habit is even more common among young women. According to a recent survey by the Swedish Public Health Agency, 28% of women and 21% of men admitted to having at least one tattoo. While most people live with them peacefully, nearly five percent (4.7%) experience skin problems that can become a real headache over time. We’ve explored what exactly gets under the skin, where pigment particles go, and whether you should fear what you’re permanently applying to your body.