Estrogen-Only Hormone Therapy May Increase Cancer Risk While Estrogen-Progestin Combination May Lower Risk

For people who have been through menopause and have taken menopausal hormone therapy, conjugated equine estrogen (CEE) taken alone may increase the risk of developing and dying from ovarian cancer, while CEE combined with medroxyprogesterone acetate (MPA) does not increase this risk and may reduce the risk of developing uterine cancer. The research will be presented at the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting, taking place May 31-June 4 in Chicago, Illinois.

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