The survival rate of sudden cerebral hemorrhage is different for different parts of the brain, the most serious part is the brainstem, if the hemorrhage in the brainstem is more than 5ml, then its survival rate is less than 20%, which means its mortality rate will be more than 80%, while less than 5ml has the chance of survival, but only 50%. In thalamic hemorrhage, it should have a survival rate of more than 80%. However, if the hemorrhage is large, the survival rate is slightly lower, but it can reach 60-70%. If the hemorrhage is only in the frontoparietal lobe or in the occipital lobe, the hemorrhage is not very large and the survival rate can reach 80-90%. If it is a cerebellar hemorrhage, the hemorrhage volume is not very large and the survival rate is also 80-90%. But if the hemorrhage in these areas, including parieto-occipital, frontal, cerebellar and thalamic hemorrhage is very large and causes brain herniation, then the survival rate drops to 10%. So the survival rate varies from site to site.