Common causes and typical presentation
Musculoskeletal problems are the most frequent cause: muscle strain, tendon inflammation, rotator cuff injuries and osteoarthritis often produce localized pain related to movement. Nerve compression in the neck (cervical radiculopathy) can cause pain that radiates down the arm with numbness or weakness. Acute trauma may cause fractures or dislocations with sudden severe pain. In some cases, heart-related pain such as angina can radiate into the arm, usually with chest discomfort or breathlessness.





