Very old thread but...
Why would estrogen cause cancer?? We are needing this hormone since young. In fact when we get into menopause, the estrogen drops so much that we are more prone to problems especially with heart attacks, alzhemier's and osteoporosis. During menopause we get many awful symptoms because estrogen dips...The only cancer we are at risk with HRT is estrogen causes the thickening of our womb lining and if not shed it develops into uterine cancer. That is why with HRT we must take both estrogen as well as progesterone. I feel that HRT is greatly misunderstood, even amongst doctors there are conflicting and confusing opinions. Cancer starts with one cell so the cancer that some women think they got after starting HRT could be cancer that has been developing for many years even before commencing HRT.