Pain in the scapular girdle and upper extremities is one of the main symptoms of primary brachial plexus neuralgia, or brachial plexus neuritis. Brachial plexus neuralgia is a condition that produces pain within its innervation when the various parts of the brachial plexus nerve, which consists of the anterior branches of the nerves from cervical 5 to thoracic 1, are damaged. Causes Brachial plexus neuralgia can be divided into two categories: primary and secondary, with the latter being more common. Primary brachial plexus neuralgia is of unknown etiology, and may be an allergic disease, with occasional familial cases seen in mild trauma, injections, vaccinations, and mild systemic infections. Secondary brachial plexus neuralgia brachial plexus adjacent lesion compression, namely, nerve root compression (cervical spondylosis, disc prolapse, tuberculosis, tumor, fracture, dislocation, cervical medullary tumor and arachnoiditis, etc.) and nerve trunk compression (thoracic outlet syndrome, cervical ribs or cervical tumors, axillary lymph node swelling (metastatic cancer), clavicular fracture, pulmonary sulcus tumor. It can be further categorized into radicular brachial plexiform neuralgia and dry brachial plexiform neuralgia according to its site of lesion. The causes of radicular brachial plexiform neuralgia include various lesions of cervical spine, cervical medullary tumor, and epidural metastatic cancer. The causes of dry brachial plexiform neuralgia are cervicothoracic outlet area syndrome, brachial plexus neuritis, cervical tumors, trauma, tuberculosis, apical lung tumors and so on. Preventive methods 1. The limb should be rested appropriately to reduce the activity of the diseased limb, and the forearm should be flexed and suspended in front of the chest. 2. If the disease is caused by cervical spondylosis, the head position should not be fixed for too long, the pillow should not be too thick, and the neck should not be over-flexed. Head and neck traction can be adopted, and after the pain is reduced or disappears, a neck brace can be used to consolidate the therapeutic effect; if the symptom progressively worsens, or spinal cord compression occurs, early surgical treatment should be performed. 3, should minimize the activities of the affected limbs, the affected limbs when the elbow flexion against the chest, with a wide cloth belt suspended from the neck; oral pain relievers; the affected limbs of the pressure point of the 0.5% -1% procaine solution and cortisone acetate injection, but also can choose physical therapy and acupuncture treatment.