BRCA1/2 genetic testing for minors is not indicated until adulthood when cancer risk management practices are recommended and parents need to decide whether to disclose or not their BRCA mutation status to their children. Healthcare professionals who counsel on BRCA mutations need to be vigilant to parents’ information and support needs regarding communicating their genetic alteration results with their children. However, the content and level of information communicated by parents to their children are difficult to assess and many parents are conflicted about knowing how and what to tell their children. Parents, therefore, need guidance and support from healthcare professionals and policy guidelines on age-appropriate communication when communicating genetic risk information with their children and how to use materials appropriate for minors. A comprehensive understanding of how parents communicate and what communication interventions healthcare professionals currently use when they support parents regarding disclosure of their genetic alteration test results to their children is unknown. This scoping review will address this gap. We will identify when parents communicate their BRCA1/2 genetic alteration test results to their children and what communication interventions are available to healthcare professionals when guiding and supporting parents to share their genetic alteration test results with their children. Discovering this information will help inform the development of a future intervention tool to support parents’ communication of their genetic alteration test results their children.