Tattoo is a practice really hard to frame because it’s fonctions, meanings are multiple and variable. Tattoo is a production of man so all science related to human beings can be convene: antrhopology, sociology or psychology…It can be an inititory rite in the traditional socities, or being a social claim or being very personal and egocentric. There are as many tattoos as individuals tattooed. through time tattoo has evolve from a social fonction of integration to an exclusively artistical and aesthetical fonction. This evolution is linked to the evolution of society it self. However under the fascinating artistical aspect of tattoo there’s a true way of expression for the individual. still today it can be a sign of memebership to a group even if it does not belongs to the cultural and social pratice anymore.