Arm pain can be caused by a wide variety of problems, including conditions that affect your skin, joints, nerves, muscles, veins, or heart. A person with arm pain may experience soreness, itching, numbness, swelling, or discomfort in the arm. Arm pain is typically due to an injury, irritation, or inflammation affecting structures in the arm… Continue reading What Is Arm Pain? Symptoms, Causes, Diagnosis, Treatment, and Prevention