Abstract
Both epidemiological and qualitative research indicate that a patient can be differently treated depending on gender. This bibliographical revision aims to provide an approach of the gender bias in health professionals. Worldwide collected data suggest that gender bias affects the therapeutic effort of health professionals, and this changes, in turn, the clinical care and treatment processes, affecting the morbi-mortality rates. In order to reduce the gender bias in health care, interventions should include sex specific clinical guides, gender awareness education of health professionals and inclusion of gender-related curricula in health studies.