A tight jaw can happen for many reasons, such as stress, temporomandibular joint disorders, grinding the teeth at night, and tetanus, among others. Share on Pinterest Nes/Getty Images Jaw tightness ...

A clicking, popping, or cracking sound in your jaw isn’t usually a cause for concern, but it can occasionally signify an underlying condition, like arthritis or myofascial pain syndrome/ “Jaw cracking ...

You rely on your jaw to eat, speak, smile and laugh, so it's only natural that it feels sore from time to time. But if that pain is severe or lingers, you may find yourself wondering "Why does my jaw ...