Aneurysm is a sac-like aneurysm formed by the outward expansion of the arterial wall due to the structural dysplasia of the brain, or damage to the arterial wall caused by traumatic brain injury or atherosclerosis, or aging. Aneurysms are also known as “time bombs” in the brain because they are prone to rupture when blood pressure rises due to occasional stress or fatigue. Because the volume of the skull is limited by the skull, even though the amount of bleeding that may occur is small, it can cause pressure and damage to the brain’s nerve tissue, leading to serious consequences. Cerebral aneurysm is the main lesion of hemorrhagic cerebrovascular disease, and its risk of causing more than 30% mortality after hemorrhage is also a factor that attracts high clinical attention in neurology. As the public gradually pays attention to their health, the number of cases of intracranial aneurysms found during general checkups is gradually increasing; the annual bleeding rate seen in aneurysms that have ever bled is generally considered to be 23-25%, while the annual bleeding incidence rate of unbleeding aneurysms is generally considered to be around 5-10% per 100,000. Although patients may benefit from the elimination of potential bleeding risks if more aggressive treatments such as surgery or embolization are used for these unbleeding aneurysms, the 1-5% risk of complications such as intraoperative bleeding or infarction that accompany the treatment makes careful clinical consideration impossible. A study in Europe and the United States showed that because of the significantly increased probability of bleeding in cerebral aneurysms larger than 6 mm in diameter, surgical intervention or endovascular embolization should be given even if no bleeding has occurred. From domestic clinical observation, cerebral aneurysms do not bleed after they are larger than 6 mm, and more and more cases confirm that the bleeding detection rate of aneurysms smaller than 5 mm and even tiny aneurysms less than 2.5 mm in diameter is increasing year by year. Since most aneurysms accompany the human body for life without dangerous conditions, it is not possible to determine when a single individual with an aneurysm may bleed; therefore, the authors suggest two options for the management of asymptomatic cerebral aneurysms that are found incidentally: 1. For cases that require anticoagulation and antiplatelet aggregation, if the doctor can master more skilled embolization techniques and the medical unit has the corresponding medical equipment and conditions, it can be basically guaranteed that no intraoperative complications will occur, the less traumatic intravascular embolization treatment or even craniotomy clamping should be chosen as early as possible, with the aim of eliminating the risk of cerebral hemorrhage and facilitating The aim is to eliminate the risk of cerebral hemorrhage and improve the quality of life of patients and the safety of treating coexisting ischemic cardiac and cerebral lesions. 2. For individuals with small aneurysms and regular growth patterns and patients who have difficulty with any prophylactic treatment, conservative treatment with symptomatic management and stricter restrictions on lifestyle habits can be conditionally chosen. The basic condition of ruptured aneurysm bleeding is abnormal hemodynamic changes, which requires good control of blood pressure in body circulation, adjustment of nervous stress, taking suitable blood pressure lowering drugs, etc.; avoiding heavy physical strength or excessive exercise in daily life, ensuring 6-8 hours of sleep daily, maintaining a tolerant and generous mind and preventing constipation, etc.; medical observation confirms that these basic requirements are effective measures to prevent ruptured aneurysm bleeding. Medical observation confirms that these basic requirements are effective measures to prevent aneurysm rupture and bleeding. Also, it is important to check the aneurysm once a year to understand the development trend and general health condition of the aneurysm, so that proper intervention can be made in time if necessary.