The blood flow of vertebral basilar artery mainly supplies brain tissues such as occipital lobe, thalamus, cerebellum and brainstem, etc. Occlusion of vertebral basilar artery may lead to cerebral infarction in the blood-supplying area and the corresponding symptoms may appear. According to the urgency of cerebral vascular blockage, the treatment method is also different, and the manifestations of vertebral basilar artery occlusion are as follows: 1) Acute vertebral basilar artery occlusion, which is mainly characterized by the rapid change of sanity, the degree of coma is relatively deep, and there are changes in vital signs. And there are changes in vital signs, such as loud, irregular breathing, rising blood pressure, decreased muscle strength of the limbs, urinary and fecal incontinence; 2, chronic vertebrobasilar artery occlusion, mainly manifested as one side of the limb weakness, dizziness, looking for unsteady, slurred speech, inability to control the speed of speech, coughing function, hearing loss, and other post-dominant cranial nerve damage performance.