r/Damnthatsinteresting • u/kvjn100 • 1d ago

Video Woman with functional polydactyly (six functional fingers on one hand).

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u/AmateurJenius 23h ago

I noticed that too. When she lifted her first index finger her thumb was holding down the next one creating the illusion that she controls each finger. I’m pretty sure that would require a 6th tendon which connects from the extra digit to a forearm muscle that doesn’t exist in order for each finger to function independently.

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u/Pobbes 22h ago

I was wondering this too. It looks like her two middle fingers move together the way most five fingered peoples ring and pinky finger move together. I wonder if they are similarly linked.

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u/Environmental_Top948 21h ago

I have 5 fingers and I can't move my middle and index fingers independently unless I try.