 This paper provides a systematic review of the current and projected uses of blockchain technology in healthcare, as well as directions for future research. The authors summarize key medical scenarios using blockchain technology and discuss potential challenges such as privacy, system efficiency, security issues, and regulatory policy. Overall, they conclude that blockchain technology has the potential to improve healthcare services in a decentralized, tamper-proof, transparent, and secure manner. This article was authored by Yixie, Jiao Zhang, Honglin Wang, and others.