How long a brain aneurysm patient can live cannot be generalized, but it is related to the size, location, nature, rupture and bleeding of brain aneurysm, patient’s age, basic health condition and many other factors, so specific analysis is needed. First of all, it should be clear that cerebral aneurysm is not a real tumor and will not spread or metastasize. If the cerebral aneurysm is small and does not rupture and bleed, it will not affect the life expectancy of the patient, so there is no need to be overly nervous. However, in general, cerebral aneurysms are extremely dangerous, and if not treated in time and the aneurysm ruptures, it may pose a serious threat to the patient’s life safety and shorten life expectancy. Especially, people who are older and have combined underlying diseases such as hypertension, heart disease, chronic lung disease and kidney disease should be more alert. In conclusion, how long a brain aneurysm patient can live varies from person to person. It is recommended that once clearly diagnosed and after comprehensive evaluation, surgical treatment can be performed if conditions allow, which is usually curable and most of them will not recur. However, some of the cerebral aneurysms are also at risk of serious complications or even death during and after surgery.