At present, cerebrovascular disease ranks first among the causes of public death in China and is still growing at a high rate. It is understood that cerebrovascular disease has surpassed heart disease and cancer as the disease with the highest mortality rate in China. At present, there are 2.5 million new stroke cases in China every year. Among the existing more than 7 million patients with cerebrovascular disease, the number of deaths due to stroke reaches 1.5 million each year. According to statistics, one person dies of cerebrovascular disease every 21 seconds in China. At the same time, into the fall and winter, and is the highest incidence of cerebrovascular disease season, the incidence of cerebrovascular disease in winter is two times the usual! Cerebrovascular collapse before the 10 danger signals cranial artery stenosis is an important cause of ischemic stroke attack or re-attack, and its development is closely related to atherosclerosis. However, because intracranial arterial stenosis is asymptomatic, even if the body has issued some “early warning signals”, due to its symptoms are not obvious and do not last long, it is easy to be ignored by the patient, family members and even doctors. If not treated in time, repeated attacks will cause neurological dysfunction that is difficult to recover, manifesting as permanent hemiparesis, aphasia, and even death.1. Obvious dizziness: Many people will experience different degrees of dizziness before the occurrence of cerebral hemorrhage. Most of them appear to be unsteady in standing and have difficulty in lifting their feet, but some people just have transient dizziness, which is somewhat similar to the feeling of being unsteady in standing after drunkenness.2. Severe headache: headache without any triggering cause, and many of them have intermittent headache at the beginning, which is later transformed into persistent headache. Some people will be accompanied by nausea and tinnitus.3. Numbness on one side:Many people will have numbness of face, arms and fingers before the occurrence of cerebral hemorrhage, and if the numbness is accompanied by the weakness of upper limbs or lower limbs, the situation will be even more dangerous.4. Darkness in front of the eyes:Suddenly and transiently darkness in front of the eyes, or blurring of one eye, or even double vision, these are also precursors of cerebral hemorrhage, which should be not be taken care of. 5, Daytime drowsiness: some people in the cerebral hemorrhage will appear before the symptoms of drowsiness, even in the daytime sleepiness is obvious, very tired, not enough sleep. 6, often choking: in the process of drinking water or eating inexplicably choking. 7, yawning: yawning may also be a sign of cerebral hypoxia. 8, the tongue is hard, slurred speech. 9, decreased grip: arm suddenly lose grip, such as take a thing obviously feel 10, often nosebleed: if normal nosebleed is not terrible, but if accompanied by high blood pressure, but also often nosebleed symptoms should be careful. 10 symptoms have 3, and accompanied by high blood pressure and other diseases should be careful! For patients whose blood vessels already have underlying lesions, accompanied by hypertension or other high-risk factors, consider going to the hospital for the appropriate examination of the cranial arteries, and give early and appropriate intervention to reduce stroke morbidity and mortality.