What is the likelihood that a woman will get breast cancer?

1 in 7: The likelihood of breast cancer in women is 1 in 7. This ratio will increase with strong family history of breast cancer of first degree as well as second degree. Breast feeding mothers usually decreases the risk.

Average 1 in 7: Unless in the hereditary group the average woman in the US has a one in seven chance of developing breast cancer as an acquired disease. Most are due to MMTV, a virus passed doen from the Black Plague that enters the Wnt 1 gene of the breast duct. In Australia during the Mouse plagues every 10 years the incieence increases to one in three women.. This is reduced with 3D mammo.