8 Causes of Collarbone Pain and How to Treat Them
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 in a bad position, shoulder problems, or underlying illnesses such as osteoarthritis, infections, or, in rare instances, cancer.
Source: Verywell health
