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

Without adequate blood flow to the heart muscle, the tissue does not receive enough oxygen and begins to die. One of the symptoms of a heart attack is left arm pain. The pain can be felt up in the ...

Pain under the left armpit may result from muscle damage or swollen lymph nodes ... An individual may notice a lump under their arm or in their armpit that is persistent or gradually enlarging.

Arm pain, especially on the left side, can happen during a heart attack because the nerves in the heart and arm are connected. When the heart isn’t getting enough blood, the pain can be felt in ...