The rotator cuff is a group of four tendons that attach to muscles that control the movement of the shoulder joint. The rotator cuff itself stabilizes the joint. A rotator cuff injury may be due to a sudden (acute) event or from gradual damage that builds up over time.
Shoulder pain is the primary symptom of rotator cuff injury. The pain usually comes on gradually and may not appear until the day following an injury. The pain is often worse at night and when lying on the affected shoulder. Other associated symptoms can include a decreased range of motion of the shoulder joint and inability to lift the arm away from the body.
Cause of a rotator cuff injury
Trauma or damage to the rotator cuff causes a rotator cuff injury.
REFERENCE:
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.
Main Article on Rotator Cuff Injury Symptoms and Signs
Rotator Cuff Injury Symptoms and Signs
- Crackling Sensation When Moving Your Shoulder
- Difficulty Lifting or Rotating Your Arm
- Joint Stiffness
- Loss of Muscle
- Muscle Weakness
- Shoulder Pain
- Crackling Sensation When Moving Your Shoulder
- Difficulty Lifting or Rotating Your Arm
- Joint Stiffness
- Loss of Muscle
- Muscle Weakness
- Shoulder Pain
Examples of Medications for Rotator Cuff Injury Symptoms and Signs
From 
Joint Problems Resources
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