Frequent arm numbness: first of all, cervical spondylosis is considered to be caused by cervical spondylosis, which refers to the protrusion of cervical discs, resulting in nerve root compression, the patient can have arm numbness, and in severe cases, bilateral arm numbness will occur. For the arm numbness caused by cervical spondylosis will be aggravated after sleep at night and alleviated after activity in the morning, and a positive cervical compression test will be found during orthopedic examination. Treatment can consider traction, acupuncture, massage, physiotherapy and other symptomatic treatment. Secondly, if the arm is often numb, transient ischemic attack is also considered. Transient ischemic attack belongs to ischemic cerebrovascular disease. Patients with atherosclerosis can experience transient neurological deficits when the blood vessels become narrow or have insufficient blood supply. For transient ischemic attack, the duration of symptoms does not exceed one hour, and the symptoms are relatively fixed, mostly numbness of one limb, but rarely numbness of both upper limbs, intracranial vascular ultrasound can be checked. Treatment can be given with dual antiplatelet aggregation and improving circulation.