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More evidence long-term estrogen therapy raises breast cancer risk
April 3rd, 2012
03:24 PM ET

More evidence long-term estrogen therapy raises breast cancer risk

New research reveals that women who take any type of hormone replacement therapy for longer than 10 years may increase their risk of breast cancer.

Some women still use hormone replacement therapy to help ease unpleasant symptoms of menopause, which can include hot flashes, night sweats and memory problems.

Estrogen plus progesterone is prescribed for women who still have a uterus because research has shown that progesterone decreases the risk for cancer in the uterus lining. Women who no longer have a uterus because they’ve had a hysterectomy are treated with estrogen-only therapy.

Over the past decade research has gone back and forth about these drugs, raising concerns about their impact on breast cancer and heart disease. A study published just last month suggested estrogen might be good for you in the short term, but a new study presented at the American Association for Cancer Research conference in Chicago this week is the first study to examine the effects of hormone replacement therapy for longer than 10 years.
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