A click or pop when you open your mouth wide, chew, or yawn is one of those sounds that's alarming the first time you notice it — and then, for most people, simply becomes background noise they stop thinking about. Whether that's the right response depends on what else is going on alongside the click.

What's actually making the sound

The temporomandibular joint — the hinge connecting your jaw to your skull — has a small disc that can shift slightly out of its normal position during movement. When it moves back into place as you open or close your mouth, that's often what produces the click or pop. Muscle tightness around the joint can contribute to the same sound.

When it's genuinely nothing to worry about

A click with no pain, no restriction in how wide you can open your mouth, and no interference with eating or talking is common and usually not something that needs treatment. Plenty of people have a clicking jaw for years without any other symptoms at all.

When it's worth getting assessed

If jaw pain, clicking, locking, limited mouth opening, or difficulty chewing persists for more than a few days, or starts interfering with daily activities like eating or speaking comfortably, an assessment is worth having sooner rather than later. Persistent locking specifically may need evaluation by an Oral & Maxillofacial Surgeon rather than physiotherapy alone.

What often gets missed: the neck connection

Forward head posture — the kind that creeps in from hours at a desk or looking down at a phone — increases stress on the jaw joint and surrounding muscles. A lot of TMJ treatment that only looks at the jaw misses this entirely, which is why cervical spine assessment and posture correction are usually part of a proper evaluation, not an afterthought.

What treatment actually looks like

For genuine TMJ dysfunction, treatment typically combines manual therapy and joint mobilisation, myofascial release for surrounding muscle tension, therapeutic jaw exercises, posture correction, and — for some patients — dry needling or other modalities. Most patients see improvement within a minimum of 7 sessions, though chronic or complex cases can need more.