Not necessarily. Nowadays, shoulder surgeons are reluctant to mention the disease concept of frozen shoulder because many years ago they did not know enough about shoulder diseases, so they proposed a general and vague concept, calling all shoulder diseases collectively as frozen shoulder. It is now called frozen shoulder, or primary adhesive capsulitis, which only accounts for about 10% of the incidence of shoulder diseases. The common diseases of the shoulder joint include rotator cuff tears; acromioclavicular impingement; shoulder instability; frozen shoulder (frozen shoulder); biceps tendinopathy, acromioclavicular arthritis; calcific rotator cuff tendinitis and others.