If you do crack your knuckles, try to be gentle. And if you have pain, get your joint checked out before popping it again. Can you pull the finger out of the joint by cracking your knuckles?

We have all seen movies where right before the hero starts fighting, he cracks his knuckles ... from the pop you get from gas bubbles. If this grinding sound happens along with pain, it could ...

Cracking your knuckles is one of those oddly divisive ... leading to a grinding or popping sound." (Read why your hip pain might be more serious than you think.) If the grinding sound is ...