A rotator cuff injury involves damage to a group of muscles and tendons that stabilize the shoulder joint. These injuries can occur due to acute trauma, such as a fall, or from repetitive overhead activities, leading to strains or tears. Symptoms often include pain, weakness, and limited range of motion in the affected arm. Treatment for rotator cuff injuries may include rest, physical therapy, and anti-inflammatory medications. In more severe cases, surgical intervention might be necessary to repair the damaged tendons. Early diagnosis and appropriate management are crucial for optimal recovery and to prevent further complications.