Image Credits : The Blockchain Land

 The sectors that can be related to blockchain are not limited to a specific field such as decentralized finance or cryptocurrencies. Blockchain technology makes it possible, through its applications, to resolve a considerable number of issues around the world. One of them is the health field.

• The late inclusion of the blockchain technology in our daily medical operations

In order to understand the real benefits and opportunities that blockchain offers to the medical community, we can start with a simple, contemporary example. Following the Covid-19 crisis, organizations responsible for vaccination could have been a relevant case of the integration of blockchain in the world of health.


Blockchain could be used for tracking vaccines, the stock and the number of vaccines administered, with the aim of facilitating the supply of vaccines and also to avoid possible misappropriations, counterfeits or simply to improve the current vaccination system.

  • What does blockchain offer us in this area?

Better security of patient data

In this case, we think back in particular to a security incident that happened in September 2021, when a leak of the French health data was identified.

The personal data (in this case: identity, social security number, contact details, result of PCR tests) related to 1.4 million Covid tests have been stolen by hackers.

What is the origin of this leak? It was quite simply, a security flaw. Indeed, the hacker wanted to demonstrate the weakness and fallibility of the computer health system.

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The blockchain, by its cryptographic system, and in particular its hash functions, makes it possible to secure the blockchain. It is this characteristic that helps to make an exchange more secure and authentic. Data cannot be read by an unauthorized third person due to cryptography. In addition, we cannot put forge data in its place.

In short, by making the data immutable, and therefore we guarantee better security of patient data.

Cost reduction

Similarly to decentralized finance, the use of a peer to peer system reduces costs as there is no longer an intermediary. If this system is applied to healthcare, the cost implications could be similar.

Indeed, there would be less exchange between the different structures. As we can see, health information systems are currently very long and expensive.

In addition, recording the various medical data from all parts of the health system could also facilitate exchanges and thereby enabling a better cohesion between these different parts.

Improved transparency in an area that seems hermetic to us

Currently, transparency in the medical field is not on the agenda. Indeed, only a selected few has access to information. Due to the sensitive nature of the area and personal data circulating, this opacity is understandable.

However, the use of blockchain could be a game changer. The blockchain being public, all the information will be searchable by everyone in real time.

This system would be particularly interesting for many aspects of the medical field.

For example: 

– Better awareness of diseases and therefore better access to healthcare.
– Improve research (pooling of everyone’s work). As a result, we could find vaccines, drugs and treatments quicker against various diseases present in the world.

Image Credits :  Metamorworks –

• Conclusion 

In the end, everything is yet to be done. But many start-ups have already taken up on the subject. So one would expect some changes to come in the health field in the near future. 

By Léonie Zaegel

A propos de Léonie ZAEGEL