Not necessarily. There are many causes of brachial neuralgia, the common ones are brachial plexus neuritis, cervical spondylosis, brachial plexus nerve injury, etc. Enlarged axillary lymph nodes caused by neck tumors or metastatic tumors can also cause brachial neuralgia by compressing the nerve trunk. If patients have fatigue, weight loss, and swollen lymph nodes in other areas in addition to local symptoms in the shoulder and upper limbs, they need to be alert to early cancer.
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