Tattoo lovers, beware! Getting inked may come with long-term medical risks and adverse skin reactions that may require laser surgery, a new US study has warned. Researchers at NYU Langone Medical Centre have found that as many as 6 per cent of adult New Yorkers who get a tattoo have experienced some form of tattoo-related rash, severe itching or swelling that lasted longer than four months and, in some cases, for many years. "We were rather alarmed at the high rate of reported chronic complications tied to getting a tattoo," said senior study investigator and NYU Langone dermatologist Marie Leger. "Given the growing popularity of tattoos, physicians, public health officials, and consumers need to be aware of the risks involved," said Leger.