Stroke is also known as stroke and cerebrovascular accident, acute cerebrovascular disease is divided into two categories: acute cerebral ischemic stroke and acute cerebral hemorrhagic stroke, such as hypertensive cerebral hemorrhage, ruptured cerebral aneurysm and acute cerebral infarction, etc. It is a disease with high morbidity, mortality, disability and recurrence, and is known as the “number one killer of human health”. It is the number one killer of human health. According to the World Health Organization, the incidence of stroke in China is 219/100,000 people per year, which is significantly higher than the world average. Every year, more than 2 million people die of stroke, and there are tens of millions of stroke survivors, 75% of whom have permanent disabilities.