The labrum is a hoop of cartilage that surrounds the shoulder socket, helping to stabilize the joint. Tears or damage to the labrum can result in pain throughout various shoulder movements, including internal rotation. A corticosteroid injection (“cortisone shot”). This could give temporary pain aid but won't “treatment” tendinopathy. There https://andyeokib.blogacep.com/39494285/little-known-facts-about-shoulder-internal-rotation-pain-treatment