This chapter introduces the background to, justification for and critical components of open disclosure in healthcare. 'Open disclosure is a process for ensuring that open, honest, empathic and timely discussions occur between patients and/or their support person(s) and health service professionals following a patient safety incident' (NSW Health, 2014, p.1). Open disclosure involves healthcare professional(s) providing a person with a factual explanation of what happened and an apology. The person or people who experienced harm should also be provided with time to relate their experience, and a plan for immediate management and prevention of recurrence should be outlined (Australian Commission on Safety and Quality in Health Care, 2013). This chapter will outline why open disclosure is important and how a clear explanation should be provided to patients and their families following an adverse incident.