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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Polydactyly


Other Names for this Disease
  • Extra digits
  • Hyperdactyly
  • Polydactylia
  • Polydactylism
  • Supernumerary digits
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.

Overview

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 birth defects and cognitive abnormalities as part of a genetic syndrome. In some cases, the extra digits may be well-formed and functional. Surgery may be considered especially for poorly formed digits or very large extra digits. Surgical management depends greatly on the complexity of the deformity. [1] [2]
Last updated: 5/8/2015

References

  1. Polydactyly. MedlinePlus. 12/04/2013; http://www.nlm.nih.gov/medlineplus/ency/article/003176.htm. Accessed 5/8/2015.
  2. Abel CG and DM McCarthy. Supernumerary Digit. Medscape Reference. 05/10/2013; http://emedicine.medscape.com/article/1113584-overview. Accessed 5/8/2015.
Your Questions Answered
by the Genetic and Rare Diseases Information Center

Please contact us with your questions about Polydactyly. We will answer your question and update these pages with new resources and information.

Basic Information

  • MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.

In Depth Information

  • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
    Supernumerary digits
    Polydactyly of the foot
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Polydactyly. Click on the link to view a sample search on this topic.
Other Names for this Disease
  • Extra digits
  • Hyperdactyly
  • Polydactylia
  • Polydactylism
  • Supernumerary digits
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.