They have long-served as fashion-statements, or a form of personal expression but now - tattoos are making their mark in an entirely different way.
Medical tattoos are replacing tags in some circles and though they have saved lives, some instructing paramedics not to resuscitate their owners are worrying some doctors.
Medical professionals advise that those with such tattoos not to get rid of their tags or bracelets as they contain more detailed information and one is considering a "Do not resuscitate" tattoo – then think twice – as it is something not easily removed if there is a change of heart.
Al Jazeera's Jessica Baldwin reports from London.
Source: Al Jazeera