Brachial plexopathy is a type of peripheral neuropathy (nerve damage that causes numbness, weakness, and pain) that can occur when the brachial plexus is damaged. Nerves run from the lower neck, ...

Pain in your left arm can have many different causes, from injuries and muscle strain to a pinched nerve or sprain. In some ...

Just as in angina, heart attacks can cause sudden left arm pain. A 2013 study found that 17% of the surveyed people who had heart attacks also had radiating pain down the shoulder, upper arm ...

"My shoulder pain wakes me up if I roll over on that side during the night." Those are two of the most common statements made by tennis players complaining of shoulder and upper arm pain.