**Abstract**

We explore a number of key relationships between patient safety and the health status of imprisoned people. This is a conceptual study drawing connections between a number of literatures including the field of patient safety, the work done on health and illness amongst imprisoned people, their social characteristics, and the carceral environment itself. We show that this is an underexplored and under-theorised field of inquiry. It also sets the scene for further investigation of not only individual and systemic factors in the health and illness experienced by such people but the role of the carceral environment. It seems clear that the risk of ill-health rises for many people who are incarcerated. Errors of both omission and commission are common in carceral environments. Risks rise for patients in such environments due to delays in diagnosis, referral and treatment. Understanding the complex and inter-related factors that increase ill-health in individuals, groups and communities provides a starting point for understanding why, when and how imprisoned people need to access and utilise healthcare, how will they are when they do so, and how. It also opens up the question of how these factors might affect their susceptibility to medical errors and adverse events.

**Keywords:** iatrogenesis, patient safety, carcerality, prisoners, incarceration, social determinants of health
