Cerebral aneurysm can be defined as a thin-walled sphere formed by the outward expansion/dilatation of a vulnerable part of the wall of an intracranial artery, which is most commonly found in arterial bifurcations, especially in the circumflex cerebral artery, and rupture of an intracerebral aneurysm often causes severe neurological dysfunction or even life-threatening, so it is often called an intracranial “time bomb”. Once the diagnosis of aneurysm is established, active treatment is recommended. The purpose of cerebral artery treatment is to isolate the aneurysm from the normal cerebral circulation, and there are currently two types of treatment: endovascular intervention (aneurysm embolization) and craniotomy (aneurysm clamping). Endovascular intervention: A very thin tube is inserted into the aneurysm by puncturing a blood vessel at the root of the patient’s thigh, and a spring coil is inserted into the aneurysm to occlude the aneurysm and achieve a therapeutic effect. The advantages of endovascular treatment are short operation time, no need to open the cranial cavity, quick recovery, and the ability to treat multiple aneurysms in different parts of the body at the same time. However, the disadvantages are that it is more expensive, has a relatively high recurrence rate, and requires lifelong anticoagulant medication for some patients who require stent placement to assist in embolization. Craniotomy: The aneurysm is exposed from outside the blood vessel by separating the brain tissue in the natural space between the brain tissues, and the neck (the area where the aneurysm bubble connects to the cerebral blood vessel) is closed with a special clamp so that the blood flow from the cerebral blood vessel does not enter the aneurysm, thus achieving treatment. This method has a long history, and its efficacy has improved with the advances in microscopic neurosurgery techniques. The advantage is that if the aneurysm is completely clamped, the recurrence rate is very low, and it is also suitable for patients with large intracranial hematomas, which can be removed at the same time as the aneurysm is clamped. The disadvantage is that it requires opening of the cranial cavity, which is relatively more traumatic and requires a more demanding surgeon. Each method has its own advantages and disadvantages, and the choice needs to be made on a case-by-case basis. Factors that need to be considered include the location, morphology, number, size, and relationship with surrounding tissues and blood vessels of the aneurysm, the patient’s age and general physical condition, and the economic status of the patient and family.