Common rotator cuff injuries include: Tearing of the rotator cuff, especially for tendons that have been weakened through age or excessive wear and tear; Tendinitis may develop through repetitive overhead movements of the arms such as painting or throwing a ball; Rotator cuff impingement may develop if the tendons of the rotator cuff are squeezed between the upper arm (humerus) and a nearby bone called the acromion; Subacromial bursitis is the inflammation of the small sac of fluid (bursa) that cushions the rotator cuff tendons from a nearby bone (the acromion); Frozen shoulder (adhesive capsulitis) may be experienced in cases where the upper arm (humerus) adheres to the shoulder blade and causes shoulder pain and stiffness.
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