Background: Tattooing is becoming an increasingly common trend mainly but not merely among the youth. However, the choice of ink body art is associated with an increase of dermatological complications.

Aim: To assess young persons' health knowledge and motives toward tattooing.

Methods: The main instrument used was an online structured questionnaire with scaling and dichotomous questions, consisting of three components: (a) the participants' sociodemographic profile, (b) health knowledge assessment, (c) motives toward or against tattooing. Simple univariate techniques and multiple logistic regression were used to data analysis. Two logistic models were developed having as dependent variable whether the respondents have or would like to have a tattoo. The independent variables in the models were sociodemographic characteristics of participants and three variables concerning respondents' health knowledge and motives on tattooing.

Results: The study sample amounted to 629 young adults living in Athens, the capital city of Greece. The prevailing age group among tattooed persons was 19-25 years old (69.5%), with females being more likely to be tattooed than males. Among tattooed participants, knowledge in specific health complications appeared high, while in other potential complications was particularly low. The main motives identified were ideology/message and aesthetics/fashion (77% in total). Quite interesting, participants with medium and high health knowledge level showed, respectively 50%, and three times higher probability of having tattoos compared to low level. Only 16.2% of the tattooed participants regarded tattoo as dangerous to health (p < 0.0005).

Conclusions: The likelihood of acquiring ink body art is increasing critically among young adults. Even though this tendency is accompanied with adequate levels of knowledge concerning health hazards, systematic health education programs for more informed and safe choices are needed to be implemented, with particular emphasis on young people.