http://www.ibtimes.com/tattoos-may-pose-skin-problems-later-study-1943544

Researchers at New York University have urged the public to think twice before getting inked. According to a study, tattoos may leave people with long-term chronic health complications, some of which might require surgical intervention later in life.

Researchers found that nearly 6 percent of adults in New York who get tattooed experience some form of skin itching or rash because of the ink. Sometimes the allergy is so severe that swelling can last between four months and several years. “We were rather alarmed at the high rate of reported chronic complications tied to getting a tattoo,” said lead researcher and dermatologist Marie Leger, in a statement.