The IUD may perforate or penetrate the womb or neck of the womb. This usually happens during insertion. Tell your doctor is you feel pain during insertion or afterwards. The risk of perforation by the IUD is increased in breastfeeding women and in women who had a delivery up to 36 weeks before insertion, and may be increased in women whose womb is tilted backwards and fixed. In case of perforation or penetration of the womb the IUD must be removed as soon as possible.
If the intrauterine device has become lodged outside the cavity of the womb, it is not effective and must be removed as soon as possible.
If you become pregnant with the intrauterine device in place, you should have it removed as soon as possible 1 . If you leave the intrauterine device in place during pregnancy, the risk of having a miscarriage, infection or preterm labor will be increased 1 . If you become pregnant, the risk that you could carry the fetus outside of your womb (have an ectopic pregnancy) is relatively increased 1 . You carry a higher risk if you have already had an ectopic pregnancy, or surgery on the tubes leading from the ovaries to the womb or a pelvic infection 1 .