Cerebral angiography is the primary test for understanding cerebrovascular pathology. The doctor will first puncture the femoral artery at the root of the patient’s thigh and then place a very thin catheter through which a contrast agent is injected into the large blood vessels in the neck to reveal the cerebral vessels. The patient is under local anesthesia and is awake, so he/she should eliminate tension to cooperate with the smooth operation. 2.There will be a brief local burning sensation when the contrast agent is injected, which is a normal reaction. 3. Answer the doctor’s questions carefully in order to observe any sensory and motor disorders and to handle them in time. 4.After the operation, the puncture site needs to be wrapped with pressure for 6 hours and a sandbag pressed to observe whether there is any blood leakage or subcutaneous hematoma at the puncture site. 5.Observe the patient’s limb temperature, pay attention to the numbness of the operated limb, and pay attention to the warmth of the lower limb in cool weather. 6.Rest in bed for 24 hours after surgery to reduce adverse reactions and prevent the limb on the operated side from bending. 7.If there is no vomiting, nausea and other discomfort after surgery, you can eat water.