What could be the reason for numbness on the left side of my face and jaw?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Left-side facial and jaw numbness can result from several causes, including stroke, trigeminal nerve compression, Bell's palsy, dental issues, or multiple sclerosis. Because sudden numbness may signal a medical emergency—especially when paired with weakness, slurred speech, or vision changes—prompt evaluation by a healthcare provider is essential to identify the underlying cause and begin appropriate treatment.

Not sure whether your symptoms warrant an ER visit or a routine appointment? Taking a free, AI-powered symptom check takes only a few minutes, is completely anonymous, and helps you understand possible causes and urgency levels before speaking with a doctor. It's a smart first step to clarify your next move with confidence.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Learn what causes left facial numbness Discover if jaw numbness needs care Find out if it could be serious See OTC options for numbness relief Find a doctor for facial numbness Understand home remedies for numbness symptoms Check if facial numbness needs urgent care

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Explanation

Numbness in the face and jaw can be caused by several medical conditions. One possible reason is a stroke, with can be due to small blood clots or bleeding. Another possibility is related to nerve problems, such as those seen in multiple sclerosis. This condition can cause sudden attacks that affect the nerves in the face, leading to numbness.

Nerve Problems: Conditions like multiple sclerosis can affect the nerves, leading to numbness or tingling in the face.

If you experience these symptoms, it is important to seek immediate medical advice. You should call 911 and go to the emergency room is you have numbness to one side of your face. For less urgent concerns, you can check your symptoms with our free AI symptom checker to better understand what might be causing your facial numbness.

(References)

Francis KR, Williams DP, & Troost BT. (1987). Facial numbness and dysesthesia. New features of carotid .... Archives of neurology, 3827688.
Francois EL, Clark NJ, & Freedman BA. (2019). Facial Numbness and Paresthesias Resolved with Anterior .... JBJS case connector, 31274646.
Nagahama Y, Kitabayashi T, Akiguchi I, Shibasaki H, & Kimura J. (1992). [A Case of Multiple Sclerosis With Paroxysmal Attacks .... Rinsho shinkeigaku = Clinical neurology, 1628436.

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