Medical rehabilitation is currently in an active phase of its development. This relevant area of domestic medicine is essential for human health. It helps patients recover from long-term illnesses, effects of injuries and diseases of the musculoskeletal system, peripheral nervous system and has a huge impact on the prognosis and outcome of treatment in general. This publication provides a comprehensive analysis of the ethical aspects of medical rehabilitation with an emphasis on legal definitions in medicine, which will improve understanding and regulation of relationship between rehabilitation, prevention and treatment. The research includes the study of domestic and international regulatory legal acts concerning medical rehabilitation, history of the specialty, the formulations that laid the foundation for the concept further development, consolidating an integrated approach to the issue of medical rehabilitation, as well as review of the problem-associated scientific papers. Explaining the principles of medical rehabilitation will help doctors avoid legal risks associated with their professional activity and serve as a guideline for taking ethically sound decisions in difficult clinical situations, whereas patients will get a full picture of their rights within the framework of medical rehabilitation.