Danish study reveals link between hormonal IUDs and breast cancer risk

A significant link between the use of hormonal IUDs and breast cancer was publicly revealed earlier this month through a large-scale Danish study.

The research was conducted by the Danish Cancer Society’s Department of Cancer Research. The findings indicate that for every 714 women using hormonal IUDs for five years, one woman will develop breast cancer linked to the device. The risk of developing breast cancer increases with the age of the women using the IUD.

In the Faroe Islands, hormonal IUDs are predominantly used for contraception, primarily among adult women who have had children.

Diana Reynstind, a specialist in women’s health, notes that most women over 35 who are using hormonal IUDs should not stop using them, despite the new study highlighting the connection to breast cancer.

“For women who are aware of being in a risk group—such as those with a family history of breast cancer, being overweight, not exercising regularly, enjoying alcohol, and being over 35—there may be reason to consider alternative contraceptive methods. However, for the vast majority, hormonal IUDs can remain a suitable option,” explains Reynstind.

In a morning broadcast, Reynstind discussed the new Danish research and its implications concerning the link between hormonal IUDs and breast cancer.