Female hormone supplements with estrogen and progestin linked to breast cancer risk

http://www.eurekalert.org/pub_releases/2015-11/bumc-fhs113015.php

Public Release: 30-Nov-2015
Female hormone supplements with estrogen and progestin linked to breast cancer risk
Boston University Medical Center

Postmenopausal African American women who use female hormone supplements containing estrogen and progestin ("combination" therapy) are at an increased risk for estrogen receptor positive breast cancer.

The study, which appears in the Journal of the National Cancer Institute, found the overall increase in risk was 50 percent, with greater increases for recent and long-term users.

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