This condition can affect one or both thumbs.
The genetic cause of toe thumbs can be attributed to an autosomal dominant inheritance pattern.
How Many People Have Toe Thumbs?

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Brachydactyly key in D is the most common form of brachydactyly involving shortened digits.
Approximately 2% to 3% of the general population has this condition.
A higher prevalence of cases has been documented among Israeli Arabs and within the Japanese population.
Summary
Toe thumbs are a relatively common genetic variation.
They are characterized by their short and wide appearance, resembling toes.
However, having toe thumbs is generally harmless and does not cause any functional limitations or health issues.
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