Hormone-based contraceptives could increase breast cancer risk

December 07, 2017 06:04 AM

A large study of women in Denmark finds that using hormone-based contraceptives for at least five years increases the risk for breast cancer by 20 percent.

However, researchers say the absolute risk for developing breast cancer for most women is extremely low. Overall, there was one extra case of breast cancer for every 7,600 women using hormonal contraception for a year. That includes pills, patches, rings, implants or injections.

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Other studies have shown hormonal birth control may lower the risk for ovarian and endometrial cancer.



WNYT Staff

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