Medical News Today: What does it mean if you're born with more than five fingers on a hand?

Some people are born with extra fingers or toes. Known as polydactyly, the condition occurs genetically and can be inherited. If polydactyly does not impact a person's ability to use their hand or foot, it may not need treatment. There are several types of polydactyly, and a variety of treatment options are available.

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