Dislocated Shoulder – Comprehensive Medical Guide

Overview

A shoulder dislocation occurs when the head of the humerus (upper arm bone) is forced out of the glenoid fossa, the shallow socket of the shoulder blade. It is one of the most common large‑joint dislocations, accounting for roughly 85–90 % of all joint dislocations in emergency departments.^{[1] Mayo Clinic} The injury is painful, visibly deforming, and can damage surrounding ligaments, nerves, and blood vessels.

Although anyone can suffer a dislocated shoulder, it is most prevalent among:

• Young, active males (ages 15‑30) – especially athletes playing contact sports such as football, rugby, basketball, and wrestling.
• Older adults with