The shoulder joint is a ball-and-socket joint. The ball is on the top of the arm bone (the humerus), and this fits into a socket of the shoulder blade (the scapula) called the glenoid. The shoulder joint is incredible because it allows us to move our shoulder though an amazing arc of motion--no joint in the body allows more motion than the shoulder joint. Unfortunately, by allowing this wide range of motion, the shoulder is not as stable as other joints. Because of this, shoulder instability is not uncommon.A shoulder dislocation generally occurs after an injury such as a fall or a sports-related injury. About 95% of the time, when the shoulder dislocates, the top of the humerus is sitting in front of the shoulder blade--an anterior dislocation. In less than 5% of cases, the top of the humerus is behind the shoulder blade--a posterior dislocation. Posterior dislocations are unusual, and seen after injuries such as electrocution or after a seizure.If you have the Symptoms of Frozen Shoulder--Shoulder dislocation, we would say herbal medicine is a safe and effective form of treatment. At TCM Window, we offer relaxing treatments and expert guidance through the whole process. We specialize in different kinds of chronic and difficult miscellaneous diseases, we offer the best possible care in a peaceful and welcoming environment. If you would want our expert to create a TCM diagnosis, please fill out the health form as requested.