Shoulder arthritis is inflammation inside your shoulder joint that occurs because of cartilage reduction. The inflammation causes pain, stiffness and issues in undertaking your day by day things to do.  A shoulder dislocation happens when the head on the humerus (higher arm bone) is forced out of your socket in https://www.theorthopaedicandpainpractice.com/what-are-shoulder-joint-dislocations/?_gl=1*164kc8h*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB