About Breast Cancer
Breast Cancer: Introduction
Breast cancer is one of the most common types of cancer in women in the U.S. Once breast cancer occurs, cancer cells can spread to other parts of the body, making it life-threatening. The good news is that breast cancer is often found early, before it has spread.
Breast Cancer: Risk Factors
Breast Cancer: Diagnosis
It is important to remember that a lump or other changes in the breast, or an abnormal area on a mammogram, may be caused by cancer or by other, less serious problems.