Shoulder joint pain and clicking may be caused by frozen shoulder, glenoid labral injury of shoulder joint, rotator cuff injury and so on. 1. Frozen shoulder: it refers to the chronic inflammatory disease caused by various reasons leading to the injury of ligament, tendon and bursa in and around the shoulder joint. Its main manifestation is shoulder joint pain and activity limitation, and some patients may have joint rattling sound when moving, which leads to shoulder joint pain clicking. 2. Glenoid labral injury of shoulder joint: mostly caused by trauma, its main manifestations are shoulder joint pain and dysfunction, shoulder weakness and other symptoms, which can also lead to shoulder joint pain and clicking. 3. Rotator cuff injury: rotator cuff is composed of subscapularis muscle, supraspinatus muscle, infraspinatus muscle and teres minor muscle, and if it is damaged or diseased, it is called rotator cuff injury. Its main manifestations are shoulder pain, shoulder joint mobility disorders, shoulder weakness and other symptoms, which can also lead to joint rattling, thus causing shoulder joint pain clicking. There are many other causes of shoulder joint pain and clicking, which should be taken seriously, and timely consultation should be made to identify the cause of the disease and follow the medical advice for further treatment or therapy.