TMJ disc perforation does not usually cause shoulder pain. The main function of the TMJ is to open and close the mouth, chewing, etc. A perforated disc will show weakness and tenderness of the biting muscles, difficulty in biting hard objects, joint pain, etc. It is often associated with abnormal stress on the joints, favoring one side of the mouth for chewing, etc., and does not usually cause shoulder pain. It is usually treated with joint disk repair and sodium hyaluronate injection. When shoulder pain occurs, it is considered to be related to the lesion of the shoulder itself (e.g., frozen shoulder), cervical spondylosis that causes shoulder pain and numbness due to compression of nerves, and cholecystitis that causes radiating pain in the shoulder. When shoulder pain occurs at the same time as TMJ disc perforation, the cause should be clarified in time and standardized treatment should be carried out under the guidance of doctor. In addition, the above drugs should also be used under the guidance of a doctor.