Abstract—The rapid development of information and communication technologies led to the evolution of internet of things (IoT). IoT supports the mechanism of connecting things together through sensors and microprocessor chip facilitating the way of exchanging data via the internet. The number of devices connected to the internet is increasing, it is estimated to reach 50 billion in 2020. Today modern hospitals and medical centers incorporating IoT technologies in various medical fields such as remote monitoring, patient information management, telesurgery, and healthcare management in order to achieve convenience to both medical staff and patients within affordable costs. This paper aims to provide a comprehensive review of the adoption of IoT in healthcare applications, benefits and limitations of some Internet of medical things (IoMT) systems suggested by the researchers, and clarify the main technologies required to apply IoMT. 

Index Terms-Internet of things, healthcare, RFID, wireless sensor networks, remote surgery, medical devices.