IUDs do not cause cancer in otherwise healthy women, but confirmed or suspected cancer of the genital tract is a contraindication to IUD use, because the increased risk of infection, perforation, and bleeding at insertion may make the condition worse.

Can IUDs cause cancer?

In the 2014 study mentioned above, researchers concluded that levonorgestrel-releasing IUDs are associated with a higher-than-expected incidence of breast cancer. That same study found a lower-than-expected incidence of these cancers: endometrial. ovarian.

Does IUD increase risk of cervical cancer?

Intrauterine device ( IUD) use. Some research suggests that women who had ever used an intrauterine device (IUD) had a lower risk of cervical cancer. The effect on risk was seen even in women who had an IUD for less than a year, and the protective effect remained after the IUDs were removed.