Both cerebral hemorrhage and cerebral infarction are the most common cerebrovascular diseases in neurology, and both can lead to different degrees of neurological deficits and even death, however, they also have great differences: 1. The pathogenesis is different. Cerebral hemorrhage is caused by intracranial hemorrhage caused by rupture of cerebral arteries for various reasons, while cerebral infarction is caused by narrowing and occlusion of cerebral arteries for various reasons, resulting in necrosis of brain tissue and eventually leading to neurological deficits. 2. Different pathogenesis characteristics. Cerebral hemorrhage generally has a rapid onset and progresses rapidly, reaching a peak in a few minutes. Cerebral infarction generally has a slower onset and reaches its peak after a few hours or even days.3. The auxiliary examinations are different. The performance of cerebral hemorrhage in CT is generally high-density foci, i.e., bright images, while cerebral infarction generally appears as low-density foci on CT and takes 24-48 hours to show up. 4. Treatment options are different. Brain hemorrhage with a large amount (more than 30ml) needs to be treated by surgery, and cerebral infarction in the acute stage can be treated by intravenous thrombolysis, arterial thrombosis, endovascular stent implantation, etc. Anti-platelet drugs, statins, etc. are also given. When there is a combination of cerebral artery stenosis, we can give endovascular stent treatment to improve the intracranial blood supply.