Hormonal Birth Control Methods Still Raise Breast Cancer Risk A Bit : Shots

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Unlike most previous research, this study didn’t just track the effect of birth control pills. Because their set of data was very large, scientists this time were also able to get a good sense of the impact of various other hormonal methods — including the birth control patch, the ring, and implants as well as hormone-releasing IUDs.

The results showed it didn’t much matter what sort of hormonal method was used, says Lina Morch, a research epidemiologist at the University of Copenhagen, who led the study.

Overall, Morch says, she and her colleagues found “a roughly 20 percent increased risk [of breast cancer] among women who currently use some type of hormonal contraception.” And the longer the women used hormonal methods, she says, the higher their risk.

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