At present, there are more and more patients with neck and shoulder pain and discomfort in the affected limbs, and they are often misdiagnosed. Patients are treated with long-term physiotherapy and medication, but they do not see any effect, and they may use inappropriate functional training methods, causing symptoms to worsen without anyone understanding them, and they are even treated as depression and psychosis, and some are diagnosed with motor neuron disease, thus losing their confidence in life. It is also not uncommon to see patients whose symptoms are aggravated by the popular cervical spine exercises on the Internet. Therefore, in addition to cervical spondylosis, myofasciitis, and frozen shoulder, patients with neck and shoulder pain and discomfort in the affected limbs, or those who exhibit numbness, weakness, or soreness, also need to be differentiated from those with brachial plexus nerve entrapment. Because there is no such specialty in each hospital, patients also go to neurosurgery and internal medicine, which actually belong to the field of hand surgery, and because hand surgery has been engaged in the treatment of some trauma for a long time, the diagnosis and treatment of the disease are neglected, and thus patients have no way to seek help. At the same time, the diagnosis of peripheral nerve disease is difficult, only electromyography can confirm the diagnosis, but because of the insensitivity and limited level, the electromyography of brachial plexus nerve compression is mostly normal, while ignoring the physical examination level and experience of professional doctors, so that patients travel to various hospitals for a long time without any gain.