A dislocation occurs when The top on the humerus (ball) pops out with the socket. This usually takes place for the duration of contact sports but can also take place from a traumatic injury into the shoulder. three This modification in exercising habits has altered the landscape of sports accidents, https://www.theorthopaedicandpainpractice.com/what-are-shoulder-joint-dislocations/?_gl=1*164kc8h*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB