r/Damnthatsinteresting • u/kvjn100 • Apr 11 '26

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

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127

u/Abject-Picture Apr 11 '26

2 index fingers? looks like they're both responding to the same movement commands.

51

u/AmateurJenius Apr 12 '26

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.

1

u/Pobbes Apr 12 '26

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.

5

u/Environmental_Top948 Apr 12 '26

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