Telemedicine allows health care professionals to evaluate, diagnose and treat patients at a distance using telecommunication technology. It aims to provide specialized medical advice, monitor patient conditions, and guide other medical staff about treatment procedures. The main types of telemedicine are interactive telemedicine services, specialist and primary care consultations, store-and-forward telemedicine, remote monitoring, and imaging services. Telemedicine provides benefits such as access to expert care, cost savings for hospitals and patients, and reduced stress for patients and relatives. While it faces challenges like technology issues and privacy concerns, its future includes greater integration with technologies like robotics and remote monitoring via mobile devices.