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A member asked:

Is left and right handedness genetic?

A doctor has provided 1 answer
Dr. Mark Rasak answered

Specializes in Cardiology

Usually: Yes usually, although people have been trained to use the opposite hand through practice due to a disability etc.

Answered 8/20/2014

5.7k views

Thank

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I've seen this black hyper pigmented spot that's very itchy, on the index finger of my left hand. I've had the same patch on my left foot since I was 8 years old they can be very itchy. Now I'm concerned. I do think it's genetic. My dad's got them?

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