Ask the doctor: Can a blocked artery cause jaw pain?
The main nerve that carries pain signals from the heart, the vagus nerve, also communicates with the neck, jaw, and head, as well as the left arm. That means alarm signals from the heart can be felt elsewhere. Angina has been reported as pain in the left arm, numbness or tingling in the fingers of the left hand, pain in the neck, and aching in the jaw. In a study from Uruguay, 6% of people with ischemia (reduced blood flow to the heart muscle) had pain only in the head or jaw.
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