Did You Know!
Some People Develop a Second Skeleton Inside Their Bodies
A rare genetic disorder called Fibrodysplasia Ossificans Progressiva (FOP) causes muscles, tendons, and ligaments to gradually turn into bone.
Over time, this extra bone can form bridges across joints, severely limiting movement.
Even more surprising, minor injuries, injections into muscles, or certain surgical procedures can trigger additional bone formation.
FOP is estimated to affect approximately 1 in 1 million people worldwide.
