What causes Clavicle Fractures? Clavicle fractures are most frequently because of a immediate blow on the shoulder, which might happen during a tumble on to the shoulder or in an accident, like a vehicle collision. Continuing with sporting actions will location additional strain in your shoulder and worsen the problem. https://www.theorthopaedicandpainpractice.com/what-is-a-clavicle-fracture-is-it-serious/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB