Common symptoms of a rotator cuff injury include tenderness, swelling and pain, especially when performing specific movements like lifting or lowering your arm. Popping, clicking or crackling sounds when the shoulder or arm is moved a certain way is another sign your rotator cuff may be injured. Orthopedic testing performed by a knowledgeable provider can help determine if a tear is likely and Imaging (usually MRI) can confirm a rotator cuff tear.