1. Fibrodysplasia Ossificans Progressiva
Fibrodysplasia Ossificans Progressiva or also known as Stone Man Syndrome is a tissue disorder where there is a strange development of bone. Basically, someone’s soft tissues will become stiff, eventually making it impossible for the person to move.
![10 Most Interesting and Extremely Rare Genetic Disorders](https://imonkey-blog.imgix.net/blog/wp-content/uploads/2017/04/24134104/shutterstock_508360594-750x563.jpg?auto=fortmat&fit=clip&expires=1770854400&width=480&height=360)
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That wraps up our list of 10 most interesting and extremely rare genetic disorders. We hope you learned something new.