The optimal time for aneurysm surgery is related to the degree of aneurysm lesion, the presence of comorbidities, etc., and needs to be analyzed on a case-by-case basis. If the aneurysm has not ruptured, the earlier the better, so as to avoid rupture of the aneurysm, once ruptured, the rate of disability and death is relatively high. Surgical closure of the aneurysm can play a curative role and can prevent future rupture and bleeding. If the patient’s aneurysm has already ruptured, 3 days after the rupture is the best time for surgery. If the optimal time is missed after that, there will usually be severe vasospasm, and the surgery will need to be performed after 21 days. If the surgical result is very good without any complications, the patient can survive for a long time and is able to achieve clinical recovery. In addition, once the aneurysm ruptures and bleeds, symptoms such as severe pain and shock may occur. When these symptoms occur, it is recommended to visit the vascular surgery department so as not to miss the best time for surgery.