Tattooing: immediate and long-term adverse reactions and complications.

Tattooing has become a popular global trend in industrialised countries, with the highest prevalence rates of up to 30-40 % in the adult population younger than 40 years. Common tattoo inks may contain heavy metals, polycyclic aromatic hydrocarbons, and primary aromatic amines, toxic if exceeding permissible limits. It is estimated that about 14.