Blockchain is a cutting-edge technology that will be used to develop novel solutions in a variety of fields, including healthcare. In the healthcare system, a Blockchain network is used to store and share patient data across systems of hospitals, diagnostic laboratories, pharmacies, and clinicians. In the medical profession, blockchain applications can bring transparency, which will avoid patients leading towards dangerous consequences. As a result, it has the potential to increase the performance, security, and transparency of medical data sharing in the healthcare system. Medical institutions have started using this technology to obtain insight and improve the analysis of medical records. In this paper, studies of how blockchain vendors provide solutions to the problems faced by healthcare industries are discussed