There are certain risks associated with cerebral aneurysm interventions, and although many of them are being performed now, there is a certain probability of abnormalities occurring. 1. The biggest risk is the intraoperative rupture of the aneurysm, because once the aneurysm ruptures, there is no way to achieve fundamental hemostasis in interventional surgery, so in many cases it is necessary to stop the intervention and turn it into open surgical treatment, which has a great impact on the overall condition of the patient, so this is also 2. The risk of vasospasm, because cerebral aneurysm intervention requires constant stimulation of blood vessels with guidewires and catheters, some people have high vascular sensitivity, which can easily lead to vasospasm, and once the vasospasm is very serious, the blood supply to the brain will be blocked, resulting in cerebral infarction and other corresponding conditions. 3, Plaque dislodgement, the principle is the same, guide wire and catheter travel in the blood vessels, once some plaque accidentally dislodged, it will also block the distal end to form artificial cerebral thrombosis, the risk is also relatively high.