Embolization procedures are generally not considered to be very painful. The procedure is usually performed with conscious sedation, so the patient is awake but relaxed. Some patients may experience slight discomfort or pressure during the procedure, but this can typically be managed with pain medication. After the procedure, patients may experience some mild soreness or discomfort at the site of the catheter insertion, but this should resolve within a few days. Overall, the level of pain associated with an embolization procedure is usually minimal and can be effectively managed with medication.