Interventional procedures can be less painful than traditional open surgery, but the degree of pain is related to the patient’s physical quality, the extent of embolization or dilation, and is mostly mild or moderate, with severe pain being very rare. Mild pain can occur when anesthetic is injected before surgery, and pain is more clustered in those who are sensitive to needle pricks. Patients do not feel any discomfort during the procedure. After embolization, different degrees of pain can occur due to ischemia and vasospasm, which are mostly tolerable. A small number of patients feel severe pain and need to use painkillers step by step.