From the view-point of the health-care system there is possibility of application of modern communication and informatics technologies to optimize some important aspects of patient treatment. This new fields of medical interest are called: telemedicine and medical telecare. Telemedicine deals with distance diagnose (for example: during emergency transport) and specialist consultations based on videoconferencing programs. Medical telecare concerns with home monitoring of patients with chronic diseases by means of computer control of important diagnostic parameters and automatic signaling when the variables exceed the defined values. Both disciplines share problems of standards of electronic medical documentation, virtual medical care networks and tele-education of health-care professionals and patients. The preliminary trials of introduction of some telemedicine programs in the health service units of local and specialist levels should make possible to evaluate the applicability and advantages of using these technologies in the whole Polish health care system in the future.