Shoulder will make a clicking sound may be due to long-term in the same position suddenly joint tension caused by physiological phenomena, may also be osteoarthritis, rotator cuff injury and other conditions. 1. Physiological phenomenon: usually in the same position for a long time, suddenly the shoulder is pulled by the situation, often issued by the clicking sound, is a normal physiological phenomenon. 2. Osteoarthritis: the etiology and pathogenesis are still unclear, mostly considered to be related to age, inflammation, obesity, genetics, trauma and other factors. Joint pain, joint enlargement, activity limitation and other symptoms often occur, bone friction sound can occur, which can be manifested as the shoulder will be issued by the clicking sound. 3. Rotator cuff injury: usually due to indirect violence, and also related to degenerative changes, chronic strain and other factors. Often appear shoulder pain, shoulder joint swelling and shoulder joint activities are limited and other symptoms, can also be accompanied by joint popping, which will also appear in the shoulder will make a clicking sound. In severe cases, shoulder dislocation and humeral head fracture can also occur. Shoulder will make a clicking sound, timely exclusion of physiological phenomena, if it is caused by disease, but also need to clarify the cause of the disease after active treatment.