Growing up, my grandmother always told us kids: "Don't crack your knuckles it will lead to arthritis in your fingers." And then she would show us her arthritic fingers as "proof" of the aftermath. However, I heard that this may be a medical myth. Can someone either confirm or deny the harmful effects of cracking one's knuckles?

  • Lifelong knuckle cracker here. I was told that all my life. Still waiting for the arthritis. My wife never cracks hers, and she has arthritis in her hands. Just anecdote.... – Carey Gregory Nov 2 '16 at 3:55
  • @CareyGregory - That was my understanding as well, that arthritis was hereditary. You can't get it from cracking knuckles, but cracking knuckles can make it worse if you do get it. – JohnP Nov 2 '16 at 22:05

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