Proximal Humerus

The proximal humerus is the upper part of the arm bone closest to the shoulder. It includes the rounded head that connects to the shoulder socket, as well as nearby structures like the greater and lesser tubercles, which anchor shoulder muscles. This area is vital for shoulder movement and stability. Injuries or fractures here are common, especially among older adults, and can affect lifting, rotating, and overall arm function. Proper diagnosis and treatment are essential for restoring mobility and strength after injury or degeneration.