The following diseases are common in elderly people with dizziness: i. Unstable blood pressure, too high or too low blood pressure can cause dizziness and vomiting, which needs to be measured and recorded several times. Second, blood system diseases, such as anemia, erythrocytosis and other diseases. Third, metabolic diseases, such as hypo- or hyperthyroidism. Fourth, blood sugar diseases, such as hypoglycemia or severe hyperglycemia can cause dizziness and vomiting, and need to go to the hospital to measure blood sugar. V. Neuropsychological disorders, such as anxiety, depression, mania, obsessive-compulsive, etc. Sixth, the side effects of certain drugs, such as antihypertensive drugs, sedative drugs. VII. Intracranial vascular diseases, such as cerebral infarction, cerebral hemorrhage, cerebral arteriosclerosis, vascular spasm, etc., need to go to the neurology department immediately to improve the examination. If the elderly are old and their dizziness and vomiting have not been improving, it is recommended that they be seen in a hospital and treated accordingly to avoid delaying their condition.