Moral injury prevention and intervention.

Background: Those working in high-risk occupations may often face ethical dilemmas that violate their moral code which can lead to moral injury (MI). While research into the impact of MI is growing, evidence for effective treatment interventions and prevention approaches remains limited.Objective: To review recent developments in treatment and prevention approaches for MI-related mental health difficulties.Method: We synthesised emerging treatments, including trauma focused therapies and spiritual approaches, as well as possible prevention strategies.Results: Conventional treatments for post-traumatic stress disorder (PTSD) (e.g. prolonged exposure) often inadequately address MI and may exacerbate symptoms. Adapted or novel approaches, including Impact of Killing, Adaptive Disclosure, and Restore and Rebuild, show promise, particularly when co-produced with patients and clinicians. Spiritual interventions demonstrate mixed outcomes. Prevention research remains very limited but highlights the potential of systemic reforms, leadership fostering psychological safety, preparedness training, structured reflection, and peer support. Evidence remains constrained by small samples, military-focused populations, and inconsistent measurement of MI.Conclusions: While no gold-standard intervention exists, values-based and compassion-focused approaches appear promising. Prevention strategies targeting organisational culture and fostering preparedness are urgently needed, particularly for civilian and diverse occupational groups, to better support and protect those exposed to potentially morally injurious events.