Cleansing can be painless. Both painful and painless procedures are performed in the same way, and painless is usually performed by an anesthesiologist who administers intravenous anesthesia. During the whole process, the patient does not feel any obvious pain, which can minimize the pain caused by the operation. If the patient is more sensitive to the pain of the operation, then he/she can choose the painless clearance. However, it should be noted that painless removal may face the risk of anesthesia, and the cost is higher than ordinary removal. The choice of painless or normal sterilization should be made on a case-by-case basis. If there is any discomfort afterward, it is recommended to seek prompt medical attention for symptomatic treatment.