Rotator cuff tear
（重定向自Rotator cuff syndrome）
![](/Images/godic/202502/08/Gray4123447.png")
![Risk factors of rotator cuff tears](/Images/godic/202502/08/Risk_Factors_of_Rotator_Cuff_Tears3447.png")
![The shoulder joint is made up of three bones: the shoulder blade (scapula), the collarbone (clavicle) and the upper arm bone (humerus).](/Images/godic/202502/08/Rotatorcuff3447.jpg")
![MRI of normal shoulder intratendinous signal](/Images/godic/202502/08/NormalMRI3447.jpg")
A rotator cuff tear is a tear of one or more of the tendons of the four rotator cuff muscles of the shoulder. A rotator cuff 'injury' can include any type of irritation or overuse of those muscles or tendons, and is among the most common conditions affecting the shoulder.