Bipolar disorder may be thought as not showing typical characteristics regarding loss of functionality and care burden due to presence of euthymic episodes. However, there are studies in the literature indicating that bipolar disorder has a significant care burden on patients’ relatives (6). There is only one study done in Turkey about impact of bipolar disorder on patient care burden (7). In this study, we aimed to compare probable care burden of bipolar disorder and schizophrenia which had already been shown to increase patient care burden at a sample from Turkey.