Periarthritis of the shoulder joint (hereafter referred to as frozen shoulder) is a common clinical condition in orthopedics and most of the textbooks and literature are based on localized lesions to observe and treat. Therefore, some scholars suggest that frozen shoulder is a common complication of cervical spondylosis, and that patients over 35 years old with frozen shoulder, except for those with a history of shoulder trauma, should be considered to have cervical spondylosis. From the clinical practice, the main points of this view are summarized in the literature, so as to better guide the clinical practice. 1. Dysfunction of the innervated nerves is a major cause. Since the innervation of the muscles governing the shoulder joint activities comes from C5 to T1 segments, and these nerve segments are precisely the sites of cervical spondylosis, from the perspective of the sequence of onset, cervical frozen shoulder is a secondary disease of cervical spondylosis, and it can also be said that cervical frozen shoulder is a stage of cervical spondylosis. Due to the hyperplasia of these areas, the nerve compression is dysfunctional, which leads to the dysfunction of shoulder joint movement and thus causes frozen shoulder. In other words, the dysfunction of the innervated nerves is a major cause of frozen shoulder. The distribution of symptoms and signs in patients with cervical spondylosis. This type of patient is characterized by mild neck symptoms. Most of these patients come to the clinic with complaints of shoulder pain and dysfunction, and strongly deny having symptoms of neck discomfort. This phenomenon of separation of lesion and manifestation is common when the cervical nerve is compressed. From the point of view of the entire medical history, the phenomenon of separation between the main symptoms and the lesion is a phase of the disease, which is the transition from the acute inflammatory phase to the chronic paralytic phase. This is probably the reason why most of the textbooks and literature are based on localized lesions to discuss and identify treatment, which should be given sufficient attention. 3, “double card” is the pathogenesis of the disease At present, most people still believe that frozen shoulder is due to chronic strain or local injury of the local tendons, causing degeneration of the surrounding tissues, inflammation and adhesions of the injury, and jamming the local microvascular nerve bundles and clinical symptoms and signs. However, because the innervated nerves are from the lower and middle cervical nerves, the cervical nerve is a good site for compression or irritation, and once the cervical nerve develops, it will inevitably affect the nutrition and function of the innervated tendons, fascia and ligaments, causing muscle atrophy. According to the viewpoint of “double card syndrome”, when the proximal nerve root is compressed, it often does not cause obvious clinical symptoms, but when the distal nerve is compressed again, even if the pressure is small, painful allergy will appear. The correlation between the two can be seen in two aspects, one is that the shoulder is combined with a cervical lesion and the shoulder pain is caused by the stimulation of the nerve root, or both; the second is that the sensitivity of the cervical nerve root is increased by compression or stimulation, which leads to local dysfunction of the shoulder through reflexes and produces inflammation and adhesions, which can be asymptomatic at this time, but when the sensitive nerve is re-stimulated and re-compressed, it will lead to the double card effect and produce clinical symptoms. symptoms. 4, pay attention to the signs and past history is an important measure to prevent missed diagnosis Because of the separation of the main symptoms and lesions, therefore, the “chief complaint” in the medical record should have a correct understanding, should be a comprehensive analysis of the disease after a comprehensive analysis of the symptoms can reflect the condition, not based on the “main symptoms” that lead to their medical treatment The “chief complaint” should not be determined solely on the basis of the “main symptom” that caused the patient to seek medical attention. The above observation shows that although the symptoms at the cervical nerve root are mild, the signs reflecting cervical nerve palsy still exist, or most of them have a history of more serious neck pain symptoms, therefore, when diagnosing the disease, we should pay more attention to the examination and observation of signs and past history to avoid misdiagnosis or omission. 5, neck and shoulder treatment is the key to the treatment of the disease As mentioned above, because of the neck and shoulder disease, when the double card effect is produced, the neck and shoulder treatment method should be used to obtain the synergistic effect of each other. In general, traditional Chinese medicine treatment combined with meridian dialectic and acupuncture, tui-na treatment is a good reflection of this overall concept, so through the combination of dialectic and disease identification, to achieve the unity of the whole and local.