When it comes to the use of the Internet of Things (IoT), the healthcare sector is set to become the next frontier of the digital revolution thanks to the Internet of Medical Things (IoMT). Due to their weight, importance, and sensitivity, these files must be protected in the strictest manner. Now that blockchain is becoming more widespread, scientists are concentrating on how to use blockchain tactics within healthcare management to improve data security. Nevertheless, owing to the differing needs of these two technologies, such integration is exceptionally complex and demanding. In order to help users, take full control of their data, this study provides an overview of the current state of blockchain platforms for the IoMT by focusing on the difficulties presented by combination systems. This article will examine blockchain's use in healthcare IoT, including supply chain transparency, health data arrangement, smart contracts, and IoT security for remote monitoring. The final portions focus on challenges and potential developments in the future.