A national survey of sexologists was carried out in France in 1998–1999, among the individuals listed in the professional directories and the telephone book as sexologists. It described the sociodemographic characteristics of sexologists, their initial profession and training in sexology, sex therapy and psychotherapeutic techniques, and how they practice sexology. A total of 959 individuals were identified and surveyed. The response rate was 63%. Two thirds of the sexologists were physicians and 60% were men. French sexologists appeared to be segmented into three subgroups: (1) one-third were general practitioners, trained in sexology and psychotherapeutic approaches, recognized themselves as sexologists, and devoted 40% of their professional activity to sexology. Men were about two thirds of this group; (2) one-third were nonphysicians (including psychologists and other health professionals, such as social workers and nurses), recognized themselves as sex therapists and devoted one third of their time to sexology. Men and women were equally represented in this group; (3) one-third were specialists, with less training in sexology and psychotherapeutic techniques, and did not generally recognize themselves as sexologists. They devoted a lesser part of their time to sexology and had academic and hospital practice. Men comprised more than 75% of this group. This study raised the issue of the diversity of primary professions involved in the field of sexology and showed that sexology is a secondary professional choice for the majority of sexologists.