There is no need for anesthesia during the placement of the Mannorrhea. The pain during the placement of the IUD is mainly in two sessions: the first session is the cervical dilatation, which is more painful. The second part, when the IUD enters the patient’s uterine cavity, is generally less painful. Because the IUD is only gently placed inside the patient’s uterine cavity, the stimulation to the patient’s endometrium and the patient’s muscle layer is relatively small and there is little damage, so the patient feels the pain is relatively mild and can be tolerated. The Manned Ring is mainly placed inside the pusher, which is relatively thin, so there is no need to dilate the cervix during the IUD placement process, so the most painful part has been omitted. When the IUD enters the patient’s uterine cavity, the irritation to the endometrium and myometrium is also very mild, so the pain is very mild, and no anesthetic is needed during the placement of the IUD.