The Internet of Medical Things (IoMT) represents a network of implantable or wearable medical devices that continuously collect medical data about the patient’s health status. These data are heavy, sensitive, and require a high level of security. Moreover, blockchain technology is paving the way for the emergence of new healthcare data management, access control, storage, retrieval, and sharing. With the emergence of blockchain technology, researchers are focusing on using blockchain strategies to bring security to healthcare applications.

However, such integration is very difficult and challenging due to the different requirements in these two technologies. Therefore, some open issues need to be resolved. Amongst them, the main issue that may slow down the adoption of blockchain in IoMT is the constrained resources of wearable body sensors and IoMT devices. Indeed, the limited resources of wearable body sensors devices made the adoption of blockchain technology a challenge and hence new lightweight solutions adapted to the constrained resources of IoMT are needed.

This Special Issue aims to collect the most relevant ongoing research efforts and to share knowledge and results in theory, methodology, and applications of new blockchain solutions for wearable body sensors and IoMT devices, including new consensus protocols, implementation of blockchain in wearable sensors nodes, blockchain for healthcare security, healthcare management, access control, and privacy. We encourage original research and review articles that apply ideas and techniques from different areas to understand the problems and challenges in blockchain, particularly those that highlight lightweight solutions that fit wearable sensors and IoMT constrained devices.

Potential topics include but are not limited to the following:

• Blockchain for the security of patient electronic health records (EHR)
• Blockchain for the management of EHR
• New consensus protocols for IoMT
• Blockchain-based secure IoMT systems
• Integration of blockchain with wearable body sensors and IoMT
• Blockchain technologies for IoMT
• New access control algorithms for blockchain-enabled IoMT
• New security mechanisms for healthcare sensor devices
• New security mechanisms for healthcare sensor devices
• New scalable blockchain platforms for sensors and IoMT devices
• Advances in big data analytics in IoMT
• Secure lightweight solutions for IoMT systems