A sexologist is someone who practices sexology, and the field of sexology plays host to a variety of different clinical and educational specialists. Sexology is an evolving science and so there isn’t a universally agreed description of what it means, but the World Association for Sexology has a working definition of sexology as a generic term encompassing the study of all aspects of sex and sexuality.

Broadly speaking, sexual health is one of the specialties involved in sexology, and a sexual health physician is typically a person with a recognized medical qualification who is usually working either in the field of sexually transmitted infections, sexual medicine, sex therapy, sex counseling, sex education, or sexological research. The medical specialties in sexual medicine include psychiatry and psychotherapy, and physicians specializing in endocrinology, urology, gynecology, and genitourinary medicine.