Background: Justice in health is one of the main concerns of health organizations, and discrimination in health care is one of the negative outcomes to achieving this goal. Hence, a full understanding of the phenomenon of discrimination in health care and adopting strategies to eliminate it is necessary. The present study was conducted to determine the experiences of nurses, physicians, and patients of discrimination in health care. Methods: The present qualitative content analysis study was conducted between 2019 and 2020. Data were collected through semi-structured interviews with 18 participants (2 physicians, 3 nursing supervisors, 2 head nurses, 4 clinical nurses, 2 nursing assistants, and 3 hospitalized patients) in one public and one private hospital in the city of Tehran. The participants were selected by purposive sampling, which continued until saturation of data. Data obtained were analyzed using Graneheim and Lundman method.Results: Four main categories and 14 subcategories were extracted from data analysis: 1) Habitual discrimination (everyday discrimination in health centers, ignoring patient rights, low levels of trust in medical staff); 2) interpersonal relationships (expectations of associates, respect for colleagues and friends, the possibility of the occurrence of similar situations, reciprocating people’s favors); 3) shortage of health care resources (shortage of medical equipment, heavy workload, infrastructures of medical centers, lack of access to physicians); and 4) Favoritism (ethnicity, favoritism as a common method, and as the ultimate solution to problems).Conclusion: The present study revealed certain dimensions of discrimination in health care that remain hidden in many quantitative studies. Thus, it appears that health system managers will be able to move towards eliminating discrimination in health care and providing ethical care by considering these issues and adopting appropriate strategies.