Your deltoid muscles make up a main muscle group in your upper body. They’re connected with many other muscles and bones in your upper back, neck, and shoulder region and are extremely mobile. They ...

Collarbone pain is usually caused by an injury, such as a fracture or joint separation. However, your collarbone, also known as the clavicle, may hurt for other reasons. It can be tender from sleeping ...

The collarbone, or clavicle, is a long, thin bone between the breastbone or sternum and the shoulder. A collarbone dislocation occurs when the collarbone moves out of its usual position, often due to ...