Why Does My Jaw Pop? Common Causes and When to Get It Checked

The temporomandibular joints, or TMJs, connect the lower jaw (mandible) to the skull. You have one joint on each side, located just in front of the ears.

These aren't simple hinges. The joints both rotate and slide as you open your mouth, chew, speak, and yawn.

Inside each TMJ is a small disc made of fibrocartilage that sits between the jawbone and skull. The disc helps the joint move smoothly and distributes forces across the joint.

Problems involving the joints, chewing muscles, or related structures are broadly referred to as temporomandibular disorders, often shortened to TMD. "TMJ" technically refers to the joint itself, although people commonly use the term when talking about jaw problems.

Why Does My Jaw Click or Pop?

There isn't one explanation for every noisy jaw. Several factors can be involved.

1. The Disc May Be Moving Differently
   
   One common explanation for clicking involves movement of the disc inside the temporomandibular joint.
   
   The disc can move out of its usual relationship with the jawbone and then shift back into position as the mouth opens or closes. That movement can produce a noticeable click or pop.
   
   This is sometimes called disc displacement with reduction.
   
   A painless click that doesn't interfere with normal jaw function may not require treatment. If clicking becomes painful, the jaw starts locking, or you can't open normally, an evaluation is appropriate.
   
   
2. Clenching or Grinding May Be Overworking the Jaw
   
   Teeth grinding and jaw clenching—often grouped under the term bruxism—can place additional stress on the teeth, jaw muscles, and temporomandibular joints.
   
   Some people grind their teeth during sleep and don't realize they're doing it. Others clench during the day while concentrating, driving, working, exercising, or dealing with stress.
   
   Signs can include jaw muscle soreness, tooth wear, headaches, tooth sensitivity, or a tired feeling in the jaw.
   
   If you catch yourself clenching during the day, try allowing your teeth to remain slightly apart when you're not eating. Your jaw doesn't need to stay tightly clenched at rest.
   
   
3. Arthritis Can Affect the TMJ
   
   The temporomandibular joint can be affected by joint diseases, including osteoarthritis and inflammatory forms of arthritis.
   
   Changes within the joint may contribute to pain, stiffness, limited movement, or sounds such as clicking, popping, or grinding.
   
   A rough grinding or grating sensation is sometimes described as crepitus and is different from a single clean click.
   
   Joint noise alone isn't enough to diagnose arthritis. A healthcare professional may need to consider your symptoms, medical history, examination findings, and, in some situations, imaging.
   
   
4. An Injury Can Affect Jaw Movement
   
   An injury to the face or jaw can damage the joint or surrounding tissues.
   
   That might happen after a fall, sports injury, automobile accident, or direct blow to the face. Symptoms can develop immediately or become more noticeable later.
   
   Jaw pain or changes in your bite following a significant injury shouldn't simply be treated as ordinary popping. Seek an appropriate medical or dental evaluation, particularly if there's swelling, difficulty opening the mouth, numbness, bleeding, or concern about a fracture.
   
   
5. Muscle Tension Can Play a Role
   
   The muscles used for chewing can become sore, tight, or overworked.
   
   Stress doesn't automatically cause a TMJ disorder, but some people respond to stress by clenching their jaw or tightening facial muscles. That can aggravate existing jaw symptoms.
   
   Pay attention to what you're doing when symptoms appear. If your jaw becomes uncomfortable after a long workday but feels better on vacation or during less stressful periods, daytime clenching may be worth discussing with your dentist.

Is a "Bad Bite" Causing the Popping?

It's tempting to assume that jaw clicking means the teeth are misaligned and the bite needs to be corrected.

The relationship between bite characteristics and temporomandibular disorders is more complicated than that.

Jaw symptoms can have multiple causes, and irreversible treatments that permanently change the teeth or bite generally shouldn't be undertaken solely on the assumption that they will eliminate a TMJ click.

A proper evaluation should come before major dental treatment intended specifically to address TMD symptoms.

When Should You Have Jaw Popping Checked?

If your jaw clicks occasionally but doesn't hurt and moves normally, you may not need treatment.

Schedule an evaluation if you develop symptoms such as:

• Persistent or worsening jaw pain
• Pain around the ear, temple, or chewing muscles
• Difficulty or pain when chewing
• Limited ability to open your mouth
• A jaw that catches or locks
• New or significant changes in how your jaw moves
• Swelling around the jaw

Symptoms following an injury

Seek prompt care if the jaw becomes locked open or closed, you've sustained significant facial trauma, or you're experiencing other symptoms that suggest an urgent problem.

A dentist is often a reasonable place to begin for ongoing jaw symptoms. Depending on the findings, additional evaluation by a physician, oral and maxillofacial specialist, or another clinician experienced in TMD may be appropriate.

What Can You Do at Home?

For mild jaw discomfort, conservative measures are often a sensible starting point while you arrange professional guidance if symptoms persist.

Give Your Jaw a Break
Temporarily reduce activities that require prolonged or forceful chewing.

That can mean skipping chewing gum, chewy candy, tough meat, and foods that require an unusually wide bite.

A short period of softer foods may be helpful when the jaw is irritated. That doesn't necessarily mean switching to an all-liquid diet or avoiding normal chewing indefinitely.

Avoid Extreme Jaw Movements
Very wide yawning, oversized sandwiches, nail biting, and repeatedly opening your mouth to "test" whether the joint still clicks can irritate an already sensitive jaw.

If you're constantly making your jaw pop on purpose, stop. Repeatedly provoking the sound doesn't help identify the cause.

Try Heat or Cold for Comfort
Some people find moist heat soothing for tight jaw muscles, while cold may feel better when an area is acutely sore.

Use whichever is comfortable, protect your skin from extreme temperatures, and don't apply very hot or frozen items directly to the face.

Notice When You're Clenching
During the day, periodically check the position of your jaw.

Are your teeth pressed together while you're answering email or sitting in traffic? Are your shoulders raised and facial muscles tight?

Simply becoming aware of the habit can make it easier to interrupt.

Don't Invent Your Own Jaw Exercises

Exercises can be useful for some TMD problems, but the appropriate movement depends on what's causing the symptoms.

An exercise that helps one person isn't automatically appropriate for another. If exercises are recommended, get instructions from a dentist, physical therapist, or other qualified healthcare professional familiar with your particular problem.

What About Mouth Guards?

If nighttime grinding or clenching is suspected, your dentist may discuss an oral appliance.

A mouth guard or splint can be appropriate in certain situations, but it isn't a universal cure for jaw popping. Different appliances have different purposes, and fit matters.

Before purchasing a device specifically to treat jaw pain or TMD, it's worth getting professional advice—especially if you already have pain, locking, or changes in your bite.

Be Cautious About Permanent Treatments

Most jaw-joint problems don't call for aggressive treatment as a first step.

When treatment is necessary, conservative and reversible approaches are generally preferred initially. Be cautious about pursuing procedures that permanently alter the teeth, bite, or jaw solely to eliminate clicking without a clear diagnosis and explanation of the benefits and risks.

If a major procedure is recommended for a TMJ problem, asking about conservative alternatives or seeking a second opinion can be reasonable.

The Sound Isn't Always the Problem

One of the most useful things to remember about jaw popping is that the noise itself isn't necessarily what needs treatment.

A painless click with normal jaw movement can be very different from a joint that clicks while hurting, repeatedly locks, or prevents you from eating comfortably.

Pay attention to the complete picture: pain, movement, locking, chewing ability, recent injuries, and whether symptoms are changing.

If the popping is persistent and bothersome—or comes with pain or limited movement—have it evaluated rather than repeatedly trying to make the joint stop clicking on your own. The goal isn't simply a silent jaw. It's a jaw that functions comfortably and reliably.