This thickening of the ligament may cause abnormal rubbing on the tendon, leading to inflammation and irritation. Shoulder and rotator cuff injuries can also contribute to biceps tendonitis.

Biceps tendon disorders, particularly those affecting ... These disorders often coexist with other shoulder pathologies, such as rotator cuff tears, making their diagnosis and treatment complex.

Pain in the right shoulder and arm can occur due to injury, wear and tear, and other health conditions. You may experience other symptoms with certain causes. Shoulder pain is very common.