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12 of The Rarest and Weirdest Diseases Know to Mankind

By Karly Carpena
October 24, 2016


8Polydactylism: This interesting disease is more common than the others. About one in every 500 children is born with extra fingers or toes. One strange thing about this condition is that the extra fingers or toes typically do not have bone in them; leading many people to get their extra digits removed surgically.