Jaw Pain When Chewing? Here's What It Means and What to Do
Updated July 20261 minute read
Jaw pain when chewing is usually a TMJ problem — overloaded jaw muscles (from clenching/grinding) or joint/disc irritation that flares with the effort of chewing. It's common and usually manageable with softer foods, habit changes, and jaw-focused physical therapy. Two important exceptions: jaw pain with chest pressure or breathlessness can signal a heart problem (emergency), and in adults over 50, new jaw pain with chewing plus headache or scalp tenderness needs urgent evaluation. A dentist should rule out tooth problems.
What this usually means
Most likely causes. Jaw muscle tension (clenching/grinding) and TMJ joint/disc irritation are the common causes of pain with chewing. Less common but important. Dental problems (a cracked tooth or abscess) can cause chewing pain. Rarely, jaw pain is referred from the heart, and in older adults jaw pain when chewing can signal giant cell arteritis — see warning signs.
What you can try at home
Switch to softer foods and smaller bites for a while, avoid gum and hard/chewy items, and practice a relaxed jaw "rest position" (lips together, teeth slightly apart). Manage clenching and stress. If a tooth seems involved, see your dentist.
When to see a physical therapist
For muscle- or joint-related chewing pain, a TMJ-focused PT can treat the cause and reduce clenching.
Red flags — don't wait
Call emergency services for jaw pain with chest pressure, breathlessness, sweating, or arm pain. Seek urgent care for jaw pain after trauma or facial swelling with fever. Go to an emergency department the same day if you are over 50 and have new jaw pain that builds as you keep chewing and eases when you stop — especially with headache, scalp tenderness, or any change in vision. Vision loss from this cause can be permanent and can affect the other eye within days.
How a PT treats this
Treatment relaxes and retrains the jaw muscles, improves joint movement, and addresses clenching and posture.
Frequently asked questions
Sources (4)
- NIDCR: TMD (Temporomandibular Disorders). — NIDCR
- MedlinePlus: TMJ disorders. — NIH/MedlinePlus
- MedlinePlus: Giant cell arteritis. — NIH/MedlinePlus
- Armijo-Olivo S, et al. Effectiveness of Manual Therapy and Therapeutic Exercise for Temporomandibular Disorders: Systematic Review and Meta-Analysis. Physical Therapy. 2016. — PubMed
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.