Tattoos: ancient body art may assist in medical emergencies.

Tattooing, like medicine, is an ancient art form. However, in the UK, tattooing of minors is illegal except when performed for medical reasons. We present a 15-year-old type I diabetic, who being prone to hypoglycaemic attacks, had a permanent medical alert tattoo on his forearm, with his parents' consent, whilst on holiday abroad. Tattooing to convey a medical message is employed by many adults for reasons as diverse as anaphylaxis to do not resuscitate orders. We present the patient and propose that clinicians may wish to consider supporting tattooing to convey a medical alert in young people, particularly those at risk of life-threatening complications, such as hypoglycaemia.