This advanced workshop is designed for service providers currently working in harm reduction, sexual health or STBBI-related services. During this workshop, participants will explore the multiple factors that contribute to STBBI-related stigma and the potential impacts of stigma on clients, as well as public health interventions. Participants will have an opportunity to enhance their skills in discussing sexuality, substance use and STBBIs with their clients and will be provided with several strategies and tools that can be employed to mitigate stigma within their practice. The turnkey workshop resources, including a facilitation manual, a participant workbook and the presentation slides, can help you facilitate a training session in your community.