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Published on: 7/14/2026

What could be the reason for numbness in the left side of my jaw?

Left-sided jaw numbness may result from nerve-related conditions such as acoustic neuroma (a benign tumor on the nerve connecting the ear and brain) or trigeminal neuropathies, which disrupt the trigeminal nerve responsible for facial sensation. Dental issues, injury, infections, or vascular problems can also contribute. Because jaw numbness can signal underlying nerve damage or, in rare cases, a serious event like a stroke, identifying the cause early is essential.

If you're experiencing this symptom, don't guess or wait. Take a free, instant, online symptom check to better understand possible causes tailored to your situation, learn which specialist to see, and confidently plan your next steps—all in just a few minutes, from the privacy of your home.

Reviewed for medical accuracy: 07/14/2026

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Explanation

Numbness in the jaw can happen for several reasons, often related to nerve issues. One possible cause is an acoustic neuroma, which is a growth that can press on nearby nerves, leading to numbness or a toothache-like feeling.

Another cause could be trigeminal neuropathies, which affect the trigeminal nerve responsible for sensation in the face. This condition can start with numbness in the face, including the jaw.

In some cases, numbness can resolve with specific medical interventions. If you're experiencing jaw numbness and want to better understand what might be causing it, try our free AI symptom checker to help identify potential causes and guide your next steps in seeking proper care.

(References)

  • Lam R. (2016). Acoustic neuroma manifesting as toothache and numbness. Australian dental journal, 25625716.

  • Varela H, & Rubin DI. (2009). Facial and trigeminal neuropathies as the initial .... Journal of clinical neuromuscular disease, 19494731.

  • Francois EL, Clark NJ, & Freedman BA. (2019). Facial Numbness and Paresthesias Resolved with Anterior .... JBJS case connector, 31274646.

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