If a patient with cerebral infarction has been in coma, it means that the degree of cerebral infarction is more serious, and most patients should belong to large cerebral infarction or brain stem infarction. During hospitalization, after treatment by doctors and care by nurses, most brain infarction patients can survive for more than 4-6 months even if they are in a coma. If they are at home, with improper care and poor nutritional conditions, they often end up with a life expectancy ranging from 20 days to about 2 months. Patients often end up dying from lung infections, bed sore infections, severe malnutrition, and electrolyte metabolism disorders. The final life expectancy of a patient with cerebral infarction depends on whether the patient develops various complications and whether multiple organ failure occurs. If the patient is well cared for and well supported nutritionally, survival time will be greatly prolonged.