what does actually happen if you crack your knuckles ive heard some rumors that scare me!

Question: what does actually happen if you crack your knuckles ive heard some rumors that scare me!
- Keywords:
  crack,
  knuckles,
  rumors
Asked by SsaraHh to Victoria on 10 Nov 2014.
- Victoria Simms answered on 10 Nov 2014:
  
  It’s fine (I think) it’s just little pockets of air that is in the fluid between your bones giving a popping sound. It’s nothing to worry about!

Ciarán commented on 10 Nov 2014:

Yeah, there are a lot of scare stories about it giving you arthritis, but I don’t think there’s any truth to them.

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Question: what does actually happen if you crack your knuckles ive heard some rumors that scare me!