Breast cancer is more common than you think. One in eight women is at the risk of having some form of breast cancer during her life. This makes it the second most common forms of cancer in American women, the first being skin cancer. The risk of having breast cancer for women over 50 is 65-70%, but a lot of women are diagnosed before their 40s as well. The prognosis for breast cancer in young women is worse. It is related to abnormalities in a genetic component and is commonly found to affect both breasts.