The causes of dizziness in patients should consider the following aspects: 1. Pay attention to whether the problem is caused by blood pressure, if the patient has high or low blood pressure, when the blood pressure control is not stable, there will always be episodes of dizziness or head swelling and other performance. 2. Some medical diseases, such as anemia, hyperthyroidism, hypothyroidism, poisoning, infection, electrolyte disorders, etc., will also appear the head always dizzy feeling. 3, If an elderly person is always dizzy, it is considered that the cerebral blood vessels are narrowed due to the sclerosis of the cerebral arteries, and the slow blood flow will cause the tissue cells of the brain to be in a stage of chronic hypoxia, which will always cause the symptoms of dizziness. 4. Consider the functional brain disorders caused by patients usually stay up late, sleep poorly, anxiety, depression, insomnia, unhappiness, etc., manifested as dizziness, lightheadedness, dizziness, light-headedness, and blurred eyes feeling.