Stone Man Syndrome

Did you know that it's possible for bodies to be a little too proficient at healing?! Well, that's the basis of this disease anyway. It's an extremely rare condition known as fibrodysplasia ossificans progressiva, which involves a mutation of the body's repair mechanisms. This leads to the 'ossification' of the muscles, tendons and ligaments otherwise known as extra bone growth! 

For such people, operation on their injuries will only cause additional bone growth and many get rendered immobile entirely within decades!