The feeling of arm fatigue should be considered whether it is caused by overexertion, such as lifting heavy objects, excessive activity or excessive exercise, sports training, etc., can lead to arm fatigue, which can be relieved by appropriate rest. But if there is no excessive activity, sports and other exertion, but the arm fatigue feeling, this phenomenon should be alert to whether it is suffering from cervical spine disease, such as cervical disc protrusion or cervical spondylosis, once suffering from cervical spine disease, it will stimulate the cervical nerve to trigger the arm soreness, swelling, fatigue feeling. Especially after a long period of ambulatory work, or after a long period of fixed posture work, long time head down, patients with cervical spine disease will lead to arm fatigue, so this situation should be promptly checked CT, MRI, to confirm the diagnosis of the disease and timely treatment.