Preaxial polydactyly

Preaxial polydactyly refers to polydactyly where the additional digit is towards the first digit of the hand (radial side) or foot (medially).


Preaxial polydactyly is less common than post-axial polydactyly, with an estimated incidence of 1 in 7000.


Preaxial polydactyly may be associated with:

Article information

rID: 33768
Section: Syndromes
Synonyms or Alternate Spellings:
  • Pre-axial polydactyly
  • Pre-axial hyperdactyly
  • Polydactyly - pre axial

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Cases and figures

  • Case 1
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  • Case 2
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  • Case 3
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  • Case 5
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  • Case 6: with clinodactyly
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