No, it is not normal to have 12 fingers. Having 12 fingers is typically due to a condition called polydactyly.
Understanding Polydactyly
Polydactyly is a congenital condition, meaning it's present at birth, where an individual has one or more extra fingers or toes. According to the provided reference, it is one of the most common congenital hand abnormalities.
Key Characteristics of Polydactyly
- Extra Digits: Individuals with polydactyly have additional fingers or toes.
- Congenital Condition: It's a condition present from birth.
- Familial Tendency: Polydactyly often runs in families, suggesting a genetic component.
- Development of Extra Fingers: The extra fingers are often small and may be abnormally developed.
Is Polydactyly Common?
The reference indicates that polydactyly is a common condition. While having extra fingers is not the norm, it's a recognized and relatively frequent birth abnormality.
In summary
While most people are born with ten fingers and ten toes, having 12 fingers (or toes) is an indication of Polydactyly.