This paper uses a non-ideal theory approach advocated for by Alison Jaggar to show that practices involved with the medicalization of serious mental disorders can subject people who have these disorders to a cycle of vulnerability that keeps them trapped within systems of injustice. When medicalization locates mental disorders solely as problems of individual biology, without regard to social factors, and when it treats mental disorders as personal defects, it perpetuates injustice in several ways: by enabling biased diagnoses through stereotyping, (...) by exploiting and coercing people who are seen as insufficiently competent, and by perpetuating idealized conceptions of choice and control that do not take into account people’s real limitations and the social context of health. Through practices of diagnosis, treatment, and recovery, medicalization can perpetuate injustices toward people who have serious mental disorders. (shrink)