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What Are the Causes of Pain, Numbness & Tingling in the Left Arm?

author image Martin Hughes
Martin Hughes is a chiropractic physician, health writer and the co-owner of a website devoted to natural footgear. He writes about health, fitness, diet and lifestyle. Hughes earned his Bachelor of Science in kinesiology at the University of Waterloo and his doctoral degree from Western States Chiropractic College in Portland, Ore.
What Are the Causes of Pain, Numbness & Tingling in the Left Arm?
Pain, numbness and tingling of the left arm may signal a cardiac emergency. Photo Credit: Comstock Images/Stockbyte/Getty Images

The person walking into an emergency room with symptoms of pain, numbness and tingling in the left arm should be prepared for a series of tests to rule out a heart problem. This is not because a heart problem is the most common cause of these symptoms, but because it is the most serious of the possible causes, and the one that demands immediate medical treatment. Problems originating in the neck, shoulder or peripheral nerves can also cause these symptoms.

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