There are four muscles that form a cover for the top of the humerus (bone of the upper arm ... it causes sharp pain in the ...

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 ...

People can experience pain under the ribs in the upper left abdomen for many reasons. Some possible causes include gastrointestinal issues and injuries to organs within the area. The rib cage ...

and arm movements. Injuries to these muscles can cause upper back pain. The feeling can be a dull ache or a sharp pain. Exercise may increase the risk of muscle strain or tear. This is ...