Can a woman wearing an intrauterine device (IUD) still become pregnant?

There is a small probability of pregnancy with a contraceptive ring. Although the success rate of contraceptive rings is relatively high, factors such as improper placement of the ring, inappropriate selection of the ring, and excessive use duration may lead to unexpected pregnancies. Generally speaking, as long as the contraceptive ring is placed in a regular large hospital, the probability of successful contraception is high. Can pregnancy occur with a contraceptive ring? Contraception and sterilization after wearing a ring are not 100% effective, meaning that women may still experience unexpected pregnancies after wearing a ring. Therefore, sexual intercourse is prohibited for one to two weeks after wearing a ring, as this may cause the ring to become displaced or fall off, leading to an unwanted pregnancy. In addition to this reason, there are several other reasons that may lead to pregnancy after wearing a ring.

1. Improper placement of the contraceptive ring: If the contraceptive ring is not placed at the bottom of the uterus, close to the cervical os, it may fail to provide effective contraception or even have no contraceptive effect, leading to an unexpected pregnancy.

2. Improper selection of the contraceptive ring: Simple metal and soft-textured rings are prone to falling off, while rings with a core are less likely to do so. Therefore, when choosing a contraceptive ring, it is recommended to select one with a core, non-metal or non-fully metal, and hard-textured material. Additionally, the size of the ring should match the size of the uterus to prevent displacement or falling off and ensure effective contraception.

3. Expired contraceptive ring: The lifespan of stainless steel metal contraceptive rings is approximately 20 years, which should be removed after six months of menopause. Plastic or silicone rubber rings can be worn for 3-5 years, while plastic-steel hybrid rings can last for 5-10 years. Copper-containing rings can be worn for 3-5 years, and those with copper sleeves instead of steel wires can last for 10-15 years. If the ring is worn beyond its lifespan without taking contraceptive measures, pregnancy may occur.

4. Elevated blood sugar: Elevated blood sugar in women can increase the acidity of body fluids. If acidic fluids corrode the metal contraceptive ring, it may affect its contraceptive effect and lead to pregnancy.