The pain of lifting the right arm and shoulder upward may be caused by overwork, trauma, frozen shoulder, cervical spondylosis or lesions of the shoulder joint itself. 1. Overexertion: Due to the accumulation of metabolites such as lactic acid in the muscles of the shoulder joint caused by overexertion such as carrying goods, the patient will experience pain when lifting the arm and shoulder upward. 2. Trauma: such as acromioclavicular impingement syndrome, rotator cuff injury, biceps tendon injury, etc., patients can have pain when lifting the right arm and shoulder upward. 3. Frozen shoulder: local inflammatory reaction due to chronic injury or strain injury can cause adhesion around the shoulder joint, limitation of shoulder joint activities, and patients can have pain when lifting the right arm shoulder upward. 4. Cervical spondylosis: due to the pressure on the nerve root that innervates the arm and shoulder, the patient’s arm and shoulder will pull the corresponding nerves when lifting the shoulder upward, and the patient may have pain in one shoulder, accompanied by radiating pain and numbness in the upper limb of the same side. 5. Shoulder joint lesion: common in shoulder joint tumor, infection and degenerative diseases, can lead to right arm shoulder pain when lifting up. If the pain of lifting the right arm and shoulder upward is not relieved, or accompanied by other symptoms, you should go to the hospital in time, and give targeted treatment after clarifying the cause.