Intersectional Stigma as a Fundamental Cause of Health Disparities: A case study of how drug use stigma intersecting with racism and xenophobia creates health inequities for Black and Hispanic persons who use drugs over time.

Recent evidence points to racial and ethnic disparities in drug-related deaths and health conditions. Informed by stigma, intersectionality, intersectional stigma, and fundamental cause theories, we aimed to explore whether intersectional stigma was a fundamental cause of health. We document key events and policies over time and find that when progress is made new mechanisms emerge that negatively affect health outcomes for Black and Hispanic persons. We then focus on intersectional stigma targeting Black and Hispanic persons who use drugs. We document that when a person, or group of people, occupy multiple stigmatized identities the processes of stigmatization and scapegoating are particularly persistent and pernicious since people and groups can be stigmatized and scapegoated on varying intersections. We propose that an intersectional stigma framework allows for a better understanding of observed patterns over time, thereby providing a better guide for policies and interventions designed to reduce disparities. As a framework, intersectional stigma aims to recognize that when different sources of stigma collide, a new set of circumstances is created for those who reside in the intersection. We conclude that intersectional stigma is a fundamental cause of health inequities and provide policy recommendations aimed at dismantling intersectional stigma processes and mitigating the effects of intersectional stigmas to ultimately promote better health outcomes for Black and Hispanic persons who use drugs.