The so-called cerebral hemorrhage refers to the rupture of blood vessels in the brain parenchyma. The common cause is hypertension. The clinical manifestations of cerebral hemorrhage can be roughly divided into two types: first, the whole brain symptoms, mostly caused by cerebral hemorrhage, edema and increased intracranial pressure. It is characterized by headache, vomiting, lethargy and coma. The second is focal symptoms, which are limited symptoms caused by blood invading into brain parenchyma, such as central hemiplegia, facial paralysis, aphasia, mild hemiplegia and so on.