Agency has become one of those central terms to understand both everyday practice with disability and chronic diseases, and modern healthcare in the western world. Today we see a willingness for more patient-centred care at hospitals and new technologies that give possibilities of self-care. This has become a prevailing discourse that stresses individual responsibility and autonomy, but also more participation and better accessibility for care. It is a discourse that has become a central part of the biomedical concept of patient agency. But is it possible to continue on this biomedical track of patient agency? In Living Chronic: Agency and Expertise in the Rhetoric of Diabetes, Lora Arduser goes into depth to critically review this concept and at the same time present a reconsideration of agency when living with disability and chronic diseases. Her case is the chronic disease diabetes, which is an appropriate case for studying agency.