Can you get pregnant while using an intrauterine device (IUD)?

In general, using an intrauterine device (IUD) does not lead to pregnancy, but it cannot completely eliminate the possibility. An IUD is a highly effective and long-term contraceptive method that works by altering the uterine environment to prevent implantation of a fertilized egg, thereby achieving contraception. However, due to individual differences or certain special circumstances—for example, the IUD might shift position, fall out, or sperm may penetrate its protective barrier—unintended pregnancy can occur. Additionally, if there are menstrual irregularities or other physical changes during IUD use, these may not necessarily be related to pregnancy but could be caused by other factors.

If you suspect the IUD has failed or that you might be pregnant, it is advisable to visit a hospital promptly for examination to confirm whether the IUD is properly positioned and to determine the possibility of pregnancy. Regular check-ups on the IUD's status are necessary, typically once a year. If displacement of the IUD or expiration of its usage period is detected, it should be replaced or another contraceptive method selected. It is also important to pay attention to bodily changes in daily life, especially abnormalities in menstrual cycle and flow, and to maintain good lifestyle habits to support reproductive health.