Polydactyly

Polydactyly, or polydactylism, also known as hyperdactyly, is the anatomical variant consisting of more than the usual number of digits on the hands and/or feet. It is a congenital abnormality, usually genetically inherited.

If recommended, the surgery is usually done while the child is about 1 year of age. Historically, polydactyly has in some areas been considered an indication of witchcraft.