The collarbone, or clavicle, is a long, S-shaped bone between your sternum (breastbone) and scapula (shoulder blade). You ...

The inner part of the bone, near the sternum (breastbone) is usually broken with direct force. When a clavicle fracture occurs, it is common to have pain and swelling at the site of the injury.

ausport.gov.au Stress fractures of the clavicle are rare. This is the report of one such fracture in a 10 year old female gymnast, who presented with a six week history of medial clavicular pain.