Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Polydactyly
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Polydactyly: More than the normal number of fingers or toes. From the Greek "polys" (many) + "dactylos" (finger) = many fingers or, medically, too many fingers. Polydactyly is the opposite of oligodactyly (too few fingers or toes).