Reviewed 20 August 2026 against current NHS and specialist NHS guidance. This is general information, not a diagnosis.
By Aneeta Prem MBE
Jaw pain can come from several different causes. One of them is temporomandibular disorder, usually shortened to TMD.
The temporomandibular joint itself is the TMJ — the joint just in front of the ear that connects the lower jaw to the skull. TMD is the broader term for problems affecting that joint, the surrounding muscles, or both.
TMD is common, usually not serious and often improves with simple measures. But persistent pain, restricted movement or jaw locking deserves proper assessment.
Ten features that can occur with TMD
1. Pain around the jaw, ear or temple
TMD can cause pain or tenderness around the jaw joint and chewing muscles. The discomfort may be felt around the ear or temple as well as directly in the jaw.
2. Clicking, popping or grinding noises
Jaw noises are common. Clicking on its own does not necessarily mean something is wrong. NHS specialist guidance notes that clicking is very common and is usually not a problem. It becomes more relevant when it is accompanied by pain, restricted movement or repeated locking.
3. Difficulty opening the mouth fully
Some people with TMD find it difficult or uncomfortable to open their mouth as widely as usual.
4. The jaw locks or becomes stuck
Jaw locking can occur when the structures inside the joint do not move normally. NHS guidance advises seeking assessment when the jaw is locking or mouth opening is significantly restricted.
5. Pain is worse when chewing
TMD pain can increase when the jaw is being used. Chewing tougher food, prolonged talking or other activities that work the jaw may aggravate symptoms for some people.
6. Headache around the temples
Headache around the temple area can occur alongside TMD. Headache has many possible causes, so this symptom by itself does not establish a jaw disorder.
7. Ear symptoms occur without a clear ear cause
Some people with TMD report earache, fullness or other symptoms around the ear. Ear symptoms also have many other causes and should not automatically be attributed to the jaw.
8. The jaw muscles feel tender or tired
TMD may involve the chewing muscles as well as the joint. Muscle tenderness or aching can therefore be part of the picture.
9. Symptoms flare when the jaw is under more strain
Clenching, grinding or prolonged jaw use can aggravate symptoms. Stress does not mean the pain is imaginary; specialist NHS guidance notes that stress can increase pain even though it is not the sole explanation for TMD.
10. Jaw symptoms are affecting eating, sleep or daily life
TMD can affect chewing, sleep and quality of life. When symptoms are persistent or changing what somebody can comfortably eat, say or do, it is reasonable to seek clinical advice.
What these signs do not tell you
This is not a self-diagnosis checklist.
Jaw and facial pain can have dental, musculoskeletal, neurological and other causes. A dentist may need to rule out tooth problems. A GP or other clinician may need to consider other causes depending on the symptoms.
TMD and trigeminal neuralgia are not the same condition. Trigeminal neuralgia typically causes sudden, severe, brief attacks of facial pain, often described as electric-shock-like. TMD more commonly involves aching or tenderness around the jaw joint or muscles, sometimes with clicking, restricted movement or locking.
Symptoms do not always fit neatly into one description. Persistent or unusual facial pain needs individual assessment rather than an online label.
What current NHS guidance suggests
Many cases of TMD improve without complex treatment. NHS advice includes temporarily choosing softer foods, avoiding habits that strain the jaw and using simple measures such as heat or cold where appropriate.
Treatment depends on the individual problem. A GP may advise on pain relief or sleep and may suggest dental, physiotherapy, psychological or specialist input where appropriate.
People should be cautious about irreversible dental or surgical treatment unless it has been recommended after an appropriate assessment.
When to seek prompt help
Current NHS guidance advises urgent assessment for symptoms including inability to eat or drink, significant difficulty opening the mouth, jaw locking, severe or frequent headaches, scalp tenderness or vision problems.
If pain is persistent, worsening, unexplained or different from your usual symptoms, speak to a dentist, GP or other appropriate healthcare professional.
Why this matters in facial-pain advocacy
People with facial pain can move between dentistry, primary care and specialist services before the cause becomes clear. Better information should help people ask sensible questions without pushing them towards a diagnosis.
That is the standard I want patient information to meet: recognise the symptom, understand the uncertainty and know when to seek proper assessment.
Sources and further reading
- NHS: temporomandibular disorder
- UCLH Facial Pain Team: temporomandibular disorder
- Leeds Teaching Hospitals: temporomandibular disorders
