Muscle Weakness: Repeated episodes of instability can cause muscle mass weak spot in the shoulder, lessening strength and features. Causes of Shoulder Instability / Dislocation Shoulder instability and dislocation can arise resulting from numerous causes, which include: Trauma: A sudden and forceful impact or injury to the shoulder, like a https://www.theorthopaedicandpainpractice.com/what-are-shoulder-joint-dislocations/?_gl=1*164kc8h*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB