My son wants to get a tattoo on his 18th birthday- does anyone know if the inks used could cause any problems for him? I hate to always be the bearer of bad news but his puritis is severe and a constant enemy. His bedding, pillows, clothes get stained frequently because of the scratching due to the itching. And the bleeding is slow to stop. What if he is itchy in a tattooed spot and the ink gets into his system?