Healthcare is a key factor in deciding people 's physical and mental well-being, which is why it is often widely recognized as a major contributor to the economy of a country. The quality of society 's healthcare system and facilities is considered one of the most important factors in the development of a country. Today almost all medical records are stored in an electronic healthcare record (EHR) system which improves access to clinical data intended to streamline costs. However, EHRs are essentially non-portable and kept on the networks where they were created mainly for purposes of interoperability, security, and liability. This results in a loss of medical quality for the patient and a rise in healthcare costs as the sharing of information between multiple healthcare facilities, spread around different places, is highly dependent on the patient who is not known as the data owner and might not be aware of such treatments obtained.
The objective of this thesis was to investigate is blockchain relevant to the healthcare system and benefits when it was applied to the medical sector. Considering if blockchain can help patient be the owner and have the control of their medical records. With its functions and effectiveness, Blockchain could be the key to change the current health system. While it is not a perfect technology, what blockchain offers can help the healthcare system develop or at least alleviate problems that are occurring.