RESUMEN
SUMMARY: Gender incongruence describes a condition in which an individual's gender identity does not align with their sex assigned at birth based on anatomic characteristics. Individuals with gender incongruence may request surgical interventions, and gender-affirmation surgery plays an important role for these individuals. The basis of care derives from principles elucidated in the Standards of Care, international guidelines that help inform clinical decision-making. Historically, mental health care professionals (MHCPs) and surgeons have worked collaboratively to select "appropriate" surgical candidates. However, as understanding of gender identity evolves, so does the relationship between the MHCP and the surgeon. The role of the MHCP has shifted from a requirement to verify an individual's identity to that of supporting and participating in a shared decision-making process between the individual and the health care team. This article discusses the evolution of the relationship between the MHCP and the surgeon and provides insight into the history of this relationship.