xwan on 15 March 2012
No you should not be worry; this is normal in some patients with more lax joints than others. The crack usually either comes from subluxing the joint then re-aligning it again. Some theories that doing to repeatedly can hasten development of osteoarthritis, but you will get OA as u get older anyways since it comes from wear and tear of the cartilaginous cushioning between bone. I would avoid grinding any joints on purpose, but no convincing evidence that this is prognostic for any disease process.
