Cracking your knuckles is a pretty common habit ... It's totally normal and doesn't hurt you. Sometimes, especially in bigger joints like your knees, shoulders, or ankles, the sound can also ...

For the most part, it’s OK but there are exceptions. If knuckle cracking causes you pain, there may be a physical problem. Studies don’t point to knuckle cracking causing arthritis.

Dr Chris van Tullekan questions that piece of perennial parental advice: don’t crack your knuckles or you’ll get arthritis! One researcher, Dr Donald Unger, actually cracked the knuckles of ...