Shoulder arthritis is inflammation in the shoulder joint that occurs because of cartilage reduction. The inflammation causes pain, stiffness and difficulty in executing your day by day pursuits.  A shoulder dislocation occurs when The pinnacle of your humerus (higher arm bone) is compelled out from the socket with the shoulder https://www.theorthopaedicandpainpractice.com/what-are-shoulder-joint-dislocations/?_gl=1*164kc8h*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB