[The lesbian population in health studies: contributions for a critical reflection].

For decades, lesbian sexuality was associated with pathology in the attitudes to and practices of health sciences and psychology. During the twentieth century that position changed gradually. This article analyzes these changes in a theoretical reflection on the domain of lesbian health, dominated by heteronormative and heterosexist concepts and practices both in research and in health care. By means of a critical contextualization of the literature, specific health needs of lesbians were identified and the interventions of health care professionals and services were questioned. Specific concrete actions are proposed in the fields of health promotion and in the eradication of discrimination and inequality in health care.