[MyNewGyrlz]

Lotus, in "your" article they say that Estriol is quite safe and has a major anticancer role. However in the following article they say the opposite:

Is it true that estriol or other human estrogens are safe in terms of cancer risk? In Europe, conventional physicians commonly prescribe estriol for menopausal symptoms. Because estriol is quite a weak estrogen, physicians thought that there was no need to add a progestin, as is done with other estrogens, to protect the uterus. Whoops. Studies show that estriol, like other estrogens, increases the risk of endometrial cancer and endometrial hyperplasia (abnormal growth of uterine cells).

The claim that estriol decreases breast cancer risk is based entirely on a theory described decades ago by one Henry M. Lemon, who thought that estriol could prevent and treat breast cancer. Lemon published a review article in which he described giving estriol to 24 women with breast cancer. Two women developed endometrial hyperplasia (a precursor to endometrial cancer), and six women developed metastases. That's right: one quarter of those treated with estriol saw their cancers spread to other locations.

http://nwhn.org/harmless-hormones-bah-humbug

What do you think about that?

Think about what? That article didn't link to any studies that I could read for myself and determine if they acutally support the authors argument.

I also discount most 'review' studies because they are not based on the authors personal research, they are a review of choice papers that the author has chosen to support his/her conclusion. The problem is, is that raw data is not usually available, and the author usually takes already thin statistical evidence and extrapolates it into even greater risk.