Pain when lifting the right arm is considered to be caused by frozen shoulder, rotator cuff injury and shoulder impingement syndrome. 1. Frozen shoulder: it is a sterile inflammation of the shoulder, which can lead to stiffness of the shoulder joint, inability to raise the arm, pain when lifting the right arm, and shoulder stiffness. 2. Rotator cuff injury: due to trauma and other factors can lead to rotator cuff injury, the patient’s shoulder pain for a long time, the pain is obvious when the shoulder is exerted, and there is pain when the right arm is lifted. 3. Acromioclavicular Impingement Syndrome (AIS): Chronic dull pain in front of the shoulder can be caused by the impingement of the subacromial tissues, which is aggravated by lifting or abduction activities, and pain when the right arm is lifted. When right arm pain occurs when lifting, it is necessary to consult a doctor in time, make a clear diagnosis, and carry out treatment according to the cause of the disease.