A member asked:

I have a mitral valve prolapse every time my chest hurt my shoulder and left arm ache. why does my left arm always hurt?

A doctor has provided 1 answer
Dr. Patricia Harkins answered

Specializes in Developmental and Behavioral Pediatrics

Referred pain: Your body senses cardiac in the shoulder and arm because of how the pain is processed by the brain.

Answered 4/12/2014

4.2k views

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