Study Finds Breast Cancer Metastasis Increases After Estrogen And Progestin Hormone Therapies

Note: a second study published in Menopause/postmenopausal women/preclinical study

"Although Hyder said that the study was independent of whether or not the ovaries were intact, it's still unclear whether progestins have the same effects in pre-menopausal women.

"Especially if there's a family history of breast cancer, it's advisable not to take progestins. It's a difficult call that must be made on an individual basis by a physician," Hyder said...."