Bleeding from aspirin after brain aneurysm surgery requires prompt discontinuation of the medication and consultation with the physician in charge to see if other medications need to be changed for antiplatelet therapy. The reason for taking aspirin after brain aneurysm surgery is that a stent is used to assist embolization during the interventional procedure. Since the stent is a foreign body, it is easy to form blood clots, which can lead to the occurrence of cerebral infarction. The purpose of taking aspirin is to prevent the formation of blood clots and avoid cerebral infarction in the later stage. Patients taking aspirin can improve cerebral microcirculation and play an anti-platelet effect. As the patient is currently taking aspirin bleeding occurs, at this time should be promptly discontinued, and under the guidance of the doctor for evaluation, if necessary, can be changed to other drugs for antiplatelet therapy, such as follow the doctor’s advice to change to clinically commonly used clopidogrel and so on. Patients with discomfort after cerebral aneurysm surgery are advised to consult a doctor in time, and must not be negligent, so as not to cause serious consequences.