General Shoulder Pain:
Description and Causes The shoulder joint is a complex mechanism that is required to perform many different movements and activities. The shoulder bones, including the scapula, clavicle and humerus, are attached together by ligaments and nearly 20 different muscles. The rotator cuff is a group of muscles and their tendons that stabilize the shoulder. Shoulder pain can be caused by sports injuries, mechanical dysfunctions from muscle imbalances, or wear and tear of the tissues around the joint. Tight or weakened muscles in the shoulder, caused by inflamed nerves can cause dysfunction in the proper function of the joint, especially in the rotator cuff. Overworking the shoulder through sports injuries or other repetitive activities can cause the muscles of the joint to become tight or strained. You may be at risk of developing shoulder problems by simply sitting too long in one position, or with their shoulders slumped.