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Left arm pain and numbness can be symptoms of many conditions, one of the most serious being a heart attack. Other potential causes include an injury, a pinched nerve, peripheral neuropathy, or hemiplegic migraine. Treatment for arm pain and numbness depends on the cause.
Disclaimer:
The content is intended to augment, not replace, information provided by your clinician. It is not intended nor implied to be a substitute for professional medical advice. Reading this information does not create or replace a doctor-patient relationship or consultation. If required, please contact your doctor or other health care provider to assist you to interpret any of this information, or in applying the information to your individual needs.