How Do You Know If You Have TMJ? Signs and Symptoms Explained

“Do I have TMJ?” is one of the most common searches in dentistry — and it's technically the wrong question. TMJ stands for temporomandibular joint: the hinge joint in front of each ear that everyone has, whether it hurts or not. “TMJ” has become a catch-all term the public uses for jaw pain in general, but the actual disorder is called TMD (temporomandibular disorder). We use “TMJ” in this article the way most people search for it — but part of our goal with this patient education series is to get that terminology right, because the right words lead to the right diagnosis.

The simplest way to think about it: can you open, or does it hurt to close down on food?

Think of it the way you’d think about a shoulder. If you can't move your shoulder — you can't lift your arm overhead — that's a shoulder joint mobility problem. If you can move your shoulder fine but it hurts to do a shoulder press, that could be the joint, the muscles, your posture, or something else entirely. The jaw works the same way. If you can't open your mouth normally, that's your TMJ — a joint mobility problem. If you can open fine but it hurts to chew, that could be your TMJ, your bite, your teeth, or your jaw muscles.

That single distinction — can you open, versus does it hurt to chew — is the fastest way to start sorting out what’s going on.

Signs it's likely your joint (an orthopedic problem)

These point toward the TMJ itself, not just the surrounding muscles:

• Your jaw feels locked or stuck and you can’t open all the way
  
  
• It’s painful to open your mouth wide — for a big bite, a yawn, or at the dentist
  
  
• Painful clicking or popping that hurts when you open, not just noise without discomfort
  
  
• Your bite suddenly feels different — teeth meeting differently than before — even though you're wearing your retainer as prescribed, and it isn’t explained by a temporary dental appliance sitting only between your front teeth

Any of these is a joint mobility issue, the same way a shoulder that won’t lift overhead is a shoulder problem — not a muscle-soreness problem.

A locked jaw that won’t open is a red flag — don’t wait

If your jaw is stuck closed and you cannot open it (a “closed lock”), that is an urgent symptom. See a board-certified oral and maxillofacial surgeon with specific TMJ expertise as soon as possible. This is not something to manage with a wait-and-see approach.

Joint noise without pain: not an emergency, but worth managing

A clicking or popping joint that doesn’t hurt is common and, on its own, is not usually a sign of a serious problem. For painless joint noise, a nightguard and physical therapy as preventive, conservative maintenance are entirely reasonable — there's no need to jump to aggressive treatment for noise alone. The moment that clicking, popping, or grinding becomes painful, that's when it's time to be evaluated properly.

If it hurts to chew — but you can open fine

This is where it gets more nuanced, and where a real diagnosis matters. Pain with chewing and normal opening can come from the joint, your bite, your teeth (a cracked tooth or deep cavity can mimic TMD), or your jaw muscles. This is exactly the situation the shoulder-press analogy above describes — normal range of motion doesn't rule out a problem, it just changes what kind of problem it's likely to be.

A note on teeth grinding (bruxism)

Grinding your teeth at night is associated with jaw muscle tension, but grinding on its own does not mean you have TMJ. Bruxism and TMD are correlated, not the same thing, and one doesn't cause the other in a simple, direct way. If you grind your teeth, a nightguard to protect your teeth from wear is reasonable regardless of whether you have any joint symptoms at all.

Referred pain: headaches, ear fullness, neck pain

TMD can sometimes show up as headaches, a feeling of ear fullness or pressure, or neck discomfort, because the jaw muscles and joint sit close to those structures. These symptoms alone are nonspecific — they have many other causes — so we don't lead with them, but they're worth mentioning to whichever provider evaluates you.

Self-check: does this sound like you?

☐ I can’t open my mouth all the way, or it’s painful to open wide

☐ My jaw feels like it locks or gets stuck

☐ Clicking or popping in my jaw is painful, not just noisy

☐ My bite suddenly feels different, even though I wear my retainer as directed

☐ It hurts to chew, even though I can open normally

☐ I grind my teeth and also have jaw or facial pain

If you checked any of the first four boxes, that points toward the joint itself. If you checked the fifth, the cause could be your joint, bite, teeth, or muscles — a proper exam will sort out which. If you checked only the last box with no pain, a nightguard is a reasonable starting point.

What to do next

Now that you know how to tell what's likely going on, the next step is understanding the terms your provider will use — see our companion guide, Evidence-Based TMD Treatment: Every Option Explained — and how each evidence-based treatment is actually used. If a locked jaw or painful clicking sounds like what you're experiencing, the International Center for TMJ and Jaw Surgery evaluates and treats patients from across Washington, DC, Maryland (including Bethesda), and Virginia, as well as patients who travel to us from other states. Call 703-504-2141 or request a consultation online.

call/text 703-504-2141     fax: 703-504-2142

2501 N Glebe Road, Suite 203     Arlington, Virginia 22207  USA

team@MyJawSurgery.com

Serving the DMV and Beyond

Our Arlington office serves patients from Arlington, McLean, Falls Church, Alexandria, Vienna, Tysons, Great Falls, and Northwest DC for oral surgery, wisdom teeth removal, dental extractions, dental implants, and IV sedation. We also welcome patients from Bethesda, Rockville, Potomac, Chevy Chase, Fairfax, Ashburn, Reston, Washington DC, and throughout the DMV for advanced TMJ and jaw surgery.

​

Home    About Dr. Hakim    For Traveling Patients    Procedures    Testimonials    Request a Visit    Refer a Patient

Patient Relationship, Financial Responsibility, and Professional Services Policy

Privacy     Accessibility     Statement of Non-Discrimination

© 2026 Moe Hakim DDS | Board Certified Oral Surgeon