CHICAGO – New research suggests that long-term use of any type of hormones to ease menopause symptoms can raise a woman’s risk of breast cancer.
It is already known that taking pills that combine estrogen and progestins — the most common type of hormone therapy — can increase breast cancer risk. But women who no longer have a uterus can take estrogen alone, which was thought to be safe and possibly even slightly beneficial in terms of cancer risk.
The new study suggests otherwise, if the pills are used for many years. It tracked the health of about 60,000 nurses and found that use of any kind of hormones for 10 years or more slightly raised the chances of developing breast cancer.