Current research is investigation the roles of obesity, hormone replacement therapy, diet, and alcohol use. Facts About Breast Cancer Breast cancer is the most common cause of death in women between the ages of 40 and 55. Breast cancer is considered a woman's disease, but men can also develop breast cancer. An estimated 178,700 new cases of breast cancer among women and 1,600 new cases among men are expected to be diagnosed in 1998. An estimated 2.6 million American women are living with breast cancer.
Breast cancer is the second major cause of death among women.
According to the most recent data, mortality rates continue to decline with the largest decreases in younger women, both white and African American. These decreases are likely to continue due to earlier detection and improved treatment. All women are at risk for developing breast cancer.