Clubbed thumb

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Top view of a child with asymmetric clubbed thumb.
Top view of a child with asymmetric clubbed thumb.
Side view of a child with asymmetric clubbed thumb
Side view of a child with asymmetric clubbed thumb

A clubbed thumb is a term used to describe the genetic clubbing of one or both thumbs. It is characterized by a particularly short thumb that is round in section and bulbous at the end.[1] The thumb nail is very wide and short. The scientific term for clubbed thumb is Brachydactyly type D or "BDD".[2]

Clubbed thumbs are historically thought of as a sign of royalty.[citation needed] This rare condition was much more common in royal European blood-lines than in the general population and was used as a factor in determining the pureness of the blood.[citation needed] Other commonly used terms are toe thumb and European thumb.

[edit] See also

[edit] Famous People with Clubbed Thumb

[edit] References

  1. ^ Alessandro Castriota-Scanderbeg, Bruno Dallapiccola (2005). Abnormal Skeletal Phenotypes: From Simple Signs to Complex Diagnoses (in English). Springer, pp. 962. ISBN 3540679979. 
  2. ^ Victor A. McKusick (2003). Online Mendelian Inheritance in Man - Brachydactyly, Type D; BDD (English). National Institute of Health - National Center for Biotechnology Information.
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