Telemedicine uses telecommunication and information technologies to provide remote clinical healthcare. It began in the 1950s with telegraphy and telephony and has expanded to include technologies like TV, computers, and the internet. Telemedicine can be used for remote consultation, monitoring, education, and mentoring. It allows for the exchange of medical data like text, audio, images, and video between providers and patients separated by distance. Telemedicine provides benefits like improved access to care, cost savings, and medical education and has applications in emergency care, chronic disease management, and disaster response. While it faces limitations from infrastructure and acceptance issues, its future potential is high as technologies continue to advance.