Jaw joint problems, like those caused by anatomy, growth, injuries, or arthritis, can sometimes cause clicking sounds. This clicking often goes away as you get older. The clicking might be due to the disc inside your jaw joint moving out of place. This disc normally helps cushion the bones in your jaw. While some people with jaw joint clicking experience other issues like pain in their jaw or ear, or a feeling of stuffiness, others might not have any additional symptoms. Clicking isn’t always a cause for concern. However, jaw joint locking usually requires treatment. There are many reasons why your jaw might lock, including a misplaced disc, arthritis, or problems with the joint itself. Doctors diagnose jaw joint issues by asking about your symptoms, taking X-rays, and potentially performing other tests.