In addition to the pill and condoms, one of the most common methods of contraception is the placement of an intrauterine device, also known as a contraceptive ring, which is the easiest, most economical and most effective method of contraception. However, some people may experience irregular menstruation, sometimes irregular vaginal bleeding or pain in the lumbosacral area within 3 months after IUD placement, and the symptoms will disappear after 3 months. If you experience heavy menstrual flow and abdominal pain after the IUD is placed, and the pain does not decrease after 3 months, it means that you are not comfortable with the IUD, so you should remove it in time.