The Internet of Things has brought about significant advancements in healthcare, enabling the seamless integration of devices and systems to improve patient care and outcomes. Healthcare is shifting it is focus from solely treating illnesses to proactive health management, this means promoting preventive care, lifestyle changes, and personalized interventions to enhance overall well-being, with the rise of Internet of Things, and more data than ever before is being generated and aggregated in healthcare. This includes information from wearable devices, electronic health records, and other sources, allowing for comprehensive analysis and insights. The use of Internet of Things and data analytics in healthcare enables a more patient-centric approach, by the leveraging technology and analyzing data, healthcare providers can deliver personalized care, make informed decisions, and optimize health outcomes. This article addressed with conventional IOT models on healthcare monitoring, privacy and security and a comparison made with existing algorithms.