Implicit biases are a daily occurrence during medical consultations. Biases disrupt the clinical judgment and modify the attitude of the practitioner. They are a source of medical errors and they impact negatively all indicators of quality of care. Biases are rooted in collective stereotypes and individual prejudice and can contribute to sexual harassment and discrimination. Developing strategies to reduce stereotypes and their impact must be a part of any program targeting sexual harassment, sexism or discrimination of any kind. This article offers an understanding of the essence of biases, based on complex cognitive processes, and proposes strategies to increase awareness at the individual and collective level.