Polydactyly

Polydactyly
Other names	Hyperdactyly
A left Human hand with postaxial polydactyly
Specialty	Medical genetics
Usual onset	During pregnancy
Duration	Lifelong unless surgically removed
Treatment	Surgery in some cases
Deaths	None

Polydactyly or polydactylism (from Greek πολύς (polys) 'many', and δάκτυλος (daktylos) 'finger'),^[1] also known as hyperdactyly, is an anomaly in humans and non-human animals resulting in supernumerary fingers and/or toes.^[2] Polydactyly is the opposite of oligodactyly (fewer fingers or toes).