[Medicine in relation to sex, gender and sexualities].

This article reviews how the distinction between the notions of gender, sex and sexualities has gradually evolved over the course of medical history. The definition of these concepts emerged in the context of the development of medical nosography to create categories that would distinguish the normal from the pathological. In the same way as somatic disorders, sexual behaviors are categorized and those that deviate from the norm and from the morality at that time, are taken care of by medicine.