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?

Sprains can be in any of the knuckle joints in your finger ... A dislocation happens when the two bones that make a joint in the finger move out of position. Both injuries can cause pain and ...

There were only two responses to the cracking of knuckles ... of each finger, known as the metacarpophalangeal joint (MPJ). The volunteers were observed and found to have cracked 62 out of ...