Stroke is the common name for cerebrovascular disease. It is mostly seen in the elderly. In recent decades, the incidence of stroke has been increasing. Many patients suffer from hemiplegia, numbness of hands and feet, blurred vision, confused speech or even inability to speak, swallowing disorders, memory loss, inability to understand other people’s speech, and change in temperament. Strokes are classified as hemorrhagic or ischemic and are caused by disruption of the blood supply to the brain, causing damage to some brain tissues. Risk factors for stroke are: hypertension, heart disease, diabetes, hyperlipidemia, smoking, carotid artery stenosis, sickle cell disease, and homocysteinemia. Excessive alcohol consumption and lack of exercise can also increase the likelihood of stroke. When the following signs appear in the body, it indicates that cerebrovascular disease may occur: 1. vertigo: it is similar to severe dizziness, with a sudden onset, a sense of rotation and shaking of the outside world, varying in severity and duration, not necessarily accompanied by tinnitus, sometimes slightly nauseous. If the dizziness is accompanied by double vision and a stiff tongue, you should be especially alert. 2. Short-term speech difficulty or partial weakness: often occurs suddenly. It may be as short as one to twenty seconds, or as long as ten minutes to a few hours and recover on its own. It does not leave any symptom after recovery, so it is often ignored. In fact, it is a sign of forebrain ischemia, which may lead to hemiplegia. 3. Sudden onset of severe headache: If an elderly person with hypertension suddenly has a severe headache with vomiting or even short-lived confusion, even if these symptoms disappear automatically after a short period of time, blood pressure should be measured immediately to check whether there is a sudden rise in blood pressure. A sudden rise in blood pressure disrupts the “autoregulation” and causes ischemia in brain tissue. If you have peripheral arteriosclerosis and your headache is getting worse and you are vomiting and confused, you should be checked promptly. This is likely to have produced cerebrovascular rupture bleeding. 4, the partial body often numb: middle-aged and elderly people often left and right side of the half of the body numb, consider whether there is a small blood vessel lesion in the brain. If the numbness is accompanied by weakness of the upper and lower limbs on one side, more attention should be paid. 5. Suddenly forgetting everything that happened in the recent past: In middle-aged and elderly people, they suddenly cannot remember anything that happened in the past few years, but they still have good self-awareness and are conscious. The memory loss usually lasts for a few hours and improves. During the time of memory loss, the mood is often agitated. Acute cerebrovascular attacks are often preceded by the above aura. If these aura are recognized and timely treatment is taken, it is possible to prevent its further development. Even if cerebrovascular disease has already occurred, early treatment may be obtained. The earlier these diseases are treated, the better the results. Once the aura of cerebrovascular disease appears, there is no need to be nervous, and if possible, a comprehensive physical and neurological examination can be done to take appropriate preventive measures.