Progesterone and breast cancer

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An Excerpt from “Natural Progesterone” by AnnA Rushton and Dr Shirley a Bond”

 

CAN TAKING PROGESTERONE CAUSE BREAST CANCER?

 

Progesterone never causes breast cancer.  If a breast cancer is described as being progesterone-sensitive, it does not mean that that the progesterone has caused it the cancer or that the administration of progesterone will make it recur. What it means is the breast has recptors that are sensitive to to progesterone.

The effect of progesterone on the breast is to reduce proliferation of the tissues, and it is this proliferation that makes cancer more likely. So by using progesterone you are positively protecting your breasts against the risk of cancer. If oestrogen is given on its own as a form of HRT, as it was in the 1960’s and early 1970’s, it can cause cancer of the lining of the uterus. This is the reason that oestrogen replacement therapy went out of favour and why women should not be prescribed unopposed oestrogen. Current forms of HRT for women who have not had a hysterectomy usually contain some form of artificial progestogen to protect the uterus, although natural progesterone would be a better way to approach the problem.

We have always known that unopposed oestrogen is a major factor in the acceleration of breast cancer. What is now becoming clear from research presented at an international cancer conference in 1998 is that unopposed oestrogen may actually be the cause of some types of cancer. For this reason alone, to give themselves maximum protection women need adequate levels of progesterone to balance out any symptoms of oestrogen dominance.

 

Author - Anna Rushton and Dame Dr Shirley Bond

Published - 2013-04-10