In patients with cervical spondylosis, especially in the neurogenic type, when pathological changes occur below cervical 5, they may produce pain and discomfort in the neck and shoulders on one or both sides, and in patients with severe symptoms of frozen shoulder, the pain may also radiate to the ipsilateral upper arm, forearm and neck and occipital area. Therefore, the pain symptoms of both cervical spondylosis and frozen shoulder may be manifested in the neck and shoulder area. Both cervical spondylosis and frozen shoulder are common and frequent diseases of middle-aged and elderly people, and their age of onset is also similar. Therefore, cervical spondylosis and frozen shoulder should be differentiated in terms of diagnosis. This is the only way to facilitate timely and accurate treatment. Cervical spondylosis and frozen shoulder are mainly differentiated by medical history, clinical symptoms, physical examination and X-ray film. (1) From the medical history, cervical spondylosis usually starts with discomfort in the neck and occipital area, and may have a history of neck trauma and repeated pillowing, while frozen shoulder usually starts with shoulder pain, and the cause may be shoulder trauma or cold, or the cause may be unknown. (2) From the clinical symptoms, the pain and discomfort in the neck and shoulder of cervical spondylosis, if it is neurogenic, often has an electric shock-like sensation in a radiating pattern, accompanied by abnormal changes in skin sensation in the area of pressure nerve root innervation such as finger numbness and cold limbs. The pain in frozen shoulder is basically limited to the shoulder, and the pain is dull or cut-like, usually obvious at night. (3) From the physical signs, the neck and shoulder pain caused by cervical spondylosis usually has no local pressure points, neck pain and activity disorders, but the functional activities of the shoulder are still good, especially the ability to do shoulder joint abduction and placement movements. Frozen shoulder often has clear pressure points in the shoulder at the tendons, joint capsule, etc., and there is obvious restriction of functional movement of the shoulder joint, while the neck movement is not impaired. Tests such as brachial plexus pull are usually positive in cervical spondylosis, and negative in patients with frozen shoulder. (4) On X-ray, patients with cervical spondylosis may show changes in physiological curvature, osteophytes and smaller intervertebral foramina on the X-ray of the cervical spine. Patients with frozen shoulder, on the other hand, generally have no significant changes, except for the possible signs of senile degeneration in the cervical spine. It should be noted that because both are geriatric diseases, they can coexist. In addition, cervical spondylosis or cervical disc herniation. Due to the irritation or compression of the cervical spinal nerve roots, it causes shoulder and arm pain and muscle spasm, resulting in limited shoulder joint movement and soft tissue adhesions around the shoulder, which can also lead to frozen shoulder, which some people call “neck and shoulder syndrome”.