IUD May Increase Breast Cancer Risk in Certain Women
the MPR take:
A new study in the journal Obstetrics & Gynecology has found that a specific intrauterine device (IUD) is associated with a greater risk of breast cancer, but not endometrial, ovarian, pancreatic, or lung cancers. Using data from the Finnish National Reimbursement Registry and the Finnish Cancer Registry from 1994–2007, 2,781 women using the levonorgestrel-releasing intrauterine system for treatment of menorrhagia developed cancer during the follow-up of 855,324 women-years. Compared to women in the general population not using this IUD, new breast cancer cases were 19% higher in women using the levonorgestrel-releasing intrauterine system. However, because the women in the study were using the IUD for the treatment of menorrhagia, other risk factors for breast cancer may be associated with this increase instead of IUD itself.
(CNN) -- Modern contraceptives have radically changed women's lives, but they are not risk free. A new study out of the journal of Obstetrics and Gynecology finds the levonorgestrel-releasing intrauterine system (LNG-IUS) or progesterone-releasing IUD, may be associated with a higher than expected incidence of breast cancer.
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