 This paper reviews current research into the application of blockchain technology in healthcare. It finds that while many studies have proposed potential uses for blockchain and healthcare, few have implemented prototypes or evaluated the effectiveness of those proposals. Additionally, the paper identifies several areas where further research is needed, such as understanding how blockchain can be used to improve patient data security and privacy, and evaluating the cost-effectiveness of blockchain-based systems compared to traditional systems. This article was authored by Cornelius C. Agbo, Kusai H. Mamoud, and J. Michael Eklund.