Congenital Abnormality
polydactyly Audio
pol·y·dac·ty·ly [ pol-ee-dak-tuh-lee ]
Subclass of:
Limb Deformities, Congenital
Definitions related to polydactyly:
  • A congenital abnormality characterized by more than 5 digits on a hand or foot.
    NCI
    U.S. National Cancer Institute, 2021
  • A congenital anomaly characterized by the presence of supernumerary fingers or toes.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • A congenital anomaly of the hand or foot, marked by the presence of supernumerary digits.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Polydactyly is the most common congenital digital anomaly of the hand and foot. It may appear in isolation or in association with other birth defects.
    Medscape
    WebMD, 2025
  • Polydactyly is a condition in which a person has more than five fingers per hand or five toes per foot. It is the most common birth defect of the hand and foot. Polydactyly can occur as an isolated finding such that the person has no other physical anomalies or intellectual impairment. However, it can occur in association with other...
    NIH Genetic and Rare Diseases
    National Center for Advancing Translational Sciences
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