The causes of dizziness in middle-aged and old people are complicated, including neurological lesions, ear diseases, cardiovascular and cerebrovascular lesions, heart diseases, blood diseases, and physical nerve dysfunction. 1. Neurological lesions: such as cerebral ischemic lesions, cerebellar lesions, traumatic brain injuries, certain types of epilepsy and so on. 2. Otogenic diseases: such as limited labyrinthitis, vestibular neuritis, Meniere’s disease, etc. It can also be seen in motion sickness, including labyrinthine stroke, which affects the balance and causes dizziness. 3. Cardiovascular disease: such as hypertension, bradycardia, heart failure, etc., also can be seen in atherosclerosis. 4. Heart disease: such as cardiac arrest, paroxysmal tachycardia, paroxysmal atrial fibrillation, and can also be seen in ventricular fibrillation, etc., often manifested as dizziness, dizziness, stomach upset, fainting, etc. 5. Blood disease: mostly seen in anemia, as well as high blood viscosity. Anemia can be manifested as dizziness accompanied by fatigue, and pallor. 6. Physical nerve dysfunction: often caused by emotional tension, pain, hot weather, fatigue, insomnia and other factors. Dizziness symptoms, need to go to the hospital as soon as possible, by the doctor according to the specific conditions, the development of individualized diagnosis and treatment plan, so as not to delay the condition.