The MSK Specialist

Why Does Your Shoulder Hurt? You reach for something on a high shelf, and pain shoots through your shoulder. Or maybe there's just a dull ache that never quite goes away. These symptoms often indicate a rotator cuff injury, a term many hear but few fully understand. Most rotator cuff problems fall into two categories: rotator cuff tendinitis or a rotator cuff tear . Knowing which one you have is critical. This guide explains the differences, their causes, symptoms, and treatment options. This is general medical information. A proper diagnosis from a healthcare professional is essential for appropriate treatment. What Is Rotator Cuff Tendinitis? Rotator cuff tendinitis is inflammation of the shoulder tendons , not a tear. The tendons become irritated, swollen, and painful from overuse, not from a rip. What Causes Rotator Cuff Tendinitis? These factors commonly trigger tendinitis: Repetitive overhead movements : e.g. painting, swimming, tennis Poor posture : narrows the s...