Do not smoke after cerebral aneurysm surgery, because smoking has a very strong impact on the endothelium, and not only on the endothelium, but also on the repair process of the endothelium, which can more easily lead to the corresponding manifestations of stenosis, sclerosis and occlusion. It may even cause recurrence of cerebral aneurysm under special circumstances, which will have more serious impact on the overall survival status of patients. Therefore, it is important to quit smoking after cerebral aneurysm surgery, and it is important to control blood pressure, stabilize blood sugar, and lower blood lipids, all of which are very favorable factors to reduce the occurrence of one’s own cerebral aneurysm. Otherwise, if you don’t pay attention at the later stage, the aneurysm will recur, and once it ruptures again, the mortality rate will be higher than the first time, which is more unfavorable for the patients. Therefore, for the sake of your own health, you must quit smoking.