While there are certainly some benefits, one shouldn't forget about the problems associated with the use of blockchain in the healthcare industry. A good description of the possible problems with this solution are summarized is the following post:
The problem is that a blockchain is a public, immutable, trustless, decentralised ledger. Anything data you include in a block is there to stay.
- What if the patient changes his mind? There is no way to "erase" his data
- What if data that is considered harmless at this point in time, becomes something of great intrest/value to for example insurance companies (for example, at this moment in time, you think it might be a good idear to record your pollen alergy into a blockchain, but in 50 years pollen alergies get linked to a specific type of terminal iless and an isurance company decides to double the premiums for everybody having a pollen alergy based on this data
- I've also heared some companies saying that anonimising the patient's data is the sollution, but what if the key gets leaked? What if one of the hospital's databases gets breached and a hacker is able to link each anonymous key to a real life person?