Glenoid labrum

The glenoid labrum is a piece of cartilage located in the shoulder joint. It sits around the edge of the glenoid, which is the shallow socket of the shoulder blade where the arm bone (humerus) fits. The labrum helps stabilize the shoulder by providing a deeper surface for the arm bone to sit in, enhancing joint stability and mobility. Injuries to the glenoid labrum can lead to pain, instability, and difficulty moving the arm, often requiring medical attention to restore function. It plays a crucial role in allowing a wide range of shoulder movements.