The main causes of dizziness and hand numbness are as follows: 1, cervical spondylosis: patients with cervical spondylosis can have head and neck stiffness and discomfort, accompanied by hand numbness symptoms. Some patients may have dizziness, nausea, vomiting, even walking difficulties and other symptoms, can do neck magnetic or chest X-ray diagnosis of cervical spondylosis; 2, cerebrovascular disease: common in patients with coronary heart disease, hypertension, diabetes mellitus. These patients often have atherosclerosis of the arteries, easy to brain hemorrhage, cerebral infarction, the patient can manifest as dizziness, numbness of the limbs, hemiparesis, etc., can be diagnosed by doing the nuclear magnetic head; 3, non-disease factors: such as psychological factors or sleep, insomnia patients, can also appear dizziness, numbness of the hand symptoms. Generally through attention to rest, relaxation, easier to get relief.