Dizziness is a self-perceived symptom, mostly a motor hallucination caused by functional brain disorders. Dizziness is often accompanied by feelings of dizziness, head swelling, feeling of head shaking, and dizziness in the eyes. Dizziness is only a symptomatic manifestation of the disease and is not a diagnosis. Early and clear diagnosis is needed after the appearance of dizziness. There are many causes of dizziness, the most common causes are: 1, neurological lesions: common are substantial brain lesions, craniocerebral trauma, epilepsy, neurosis and other diseases. 2, cardiovascular disease: common are hypertension, heart valve disease, hyperlipidemia, atherosclerosis and other diseases. 3.Ear diseases: common ones are benign paroxysmal positional vertigo (otolithiasis), Meniere’s disease, etc. 4, anemia can also cause dizziness, which can be caused by: indigestion, peptic ulcer, certain chronic inflammatory diseases, etc. 5, other diseases: cold, fever, anemia, functional hypoglycemia, cervical spondylosis, poisoning by drugs, depression, etc. After the appearance of dizziness symptoms should not be careless, we should pay enough attention to it, do not arbitrarily delay the time, so as not to delay the disease, delay the best treatment time. After the appearance of dizziness, it is necessary to go to the hospital for a timely examination to determine the cause of the disease and then treat the cause.