A new study is raising the alarm about the link between birth control and breast cancer.
Researchers in Denmark found that using any type of hormonal contraceptive is linked to a 20 percent higher risk of breast cancer. Risk seemed to increase the longer the contraceptive was used.
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But, the overall risk remains small, and past research suggests oral contraceptives protect against other types of cancer.
This is an undated image of birth control pills. (KGO-TV)