Tendonitis, sometimes spelled tendinitis, is a painful condition caused by inflammation of a tendon – tissue that attaches muscles to bones. Rotator cuff tendonitis, which causes shoulder pain, often develops from repetitive movements like throwing a baseball. Keeping your arm overhead for long periods of time, for example while painting, doing carpentry work or hairstyling, also can cause tendonitis.
Shoulder pain is often linked to the rotator cuff - muscles and tendons that stabilizes the shoulder and allows it range of motion.
Learn about this serious condition, including what causes it, how it's diagnosed and how it's treated.
Here are some helpful tips to avoid sore shoulders from overusing your latest tech devices.