Introduction

Breast cancer is the most common form of cancer in U.S. women.* It is also the second-leading cause of cancer death for all women (after lung cancer) and the leading cause of death in women between the ages of 40 and 55.

Breast cancer is the most common form of cancer in U.S. women.* It is also the second-leading cause of cancer death for all women (after lung cancer) and the leading cause of death in women between the ages of 40 and 55. As a result of earlier detection and improved treatment, however, breast cancer mortality rates are declining. Early detection and treatment of breast cancer also enhances the five-year survival rate for cancer patients.

* Men, in rare instances, also develop cancer in the area of the breast. Men should consult a health care professional if they notice any lumps or changes to their breasts or nipple discharge. Experts do not recommend routine screening exams for men.