Abstract: This research project is concerned with the risk of vicarious traumatisation for psychiatric mental health nurses. Vicarious traumatisation is an occupational hazard that is largely unrecognised and unaddressed in the profession. The paper explores the nature of vicarious traumatisation, and its contemporary conceptualisation in the literature on helping-induced trauma. Findings from the literature search and understanding of the construct of vicarious traumatisation are considered against the essence of psychiatric mental health nursing, the therapeutic relationship and use of self, and the nature of daily practice. After consideration of the potential risk of vicarious traumatisation for the profession it is argued that it is a real risk and is likely to impact on all areas of psychiatric mental health nursing practice. Support for the position that vicarious traumatisation is not well recognised and understood is offered. The paper concludes with recommendations that psychiatric mental health nurses and the profession take serious note of vicarious traumatisation as a risk, and there is an ethical imperative for psychiatric mental health nurses to take measures to inform themselves of and engage in processes of risk management for nurses and clients.