Gender bias in medicine negatively interfere with the medical care of both men and women, which can lead to risks for patients as well as health inequalities. Unisanté has launched a pilot project to integrate reflexivity by students at the Medical School of the University of Lausanne on the influence of gender in clinical practice, using an electronic portfolio. The clinical vignettes presented and discussed in this article illustrate this reflective work and the main biases and stereotypes encountered: pain management, assessment of the psychosocial context, management of domestic violence, screening for chlamydia infection and discussion of a contraceptive method.