What Is Breast Cancer?

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Breast cancer is a disease in which malignant (cancer) cells form in  the tissues of the breast. The damaged cells can invade surrounding  tissue, but with early detection and treatment, most people continue a  normal life.

• One in eight women will be diagnosed with breast cancer in their lifetime.
• Breast cancer is the most commonly diagnosed cancer in women.
• Breast cancer is the second leading cause of death among women.
• Each  year it is estimated that over 220,000 women in the United States will  be diagnosed with breast cancer and more than 40,000 will die.
• Although  breast cancer in men is rare, an estimated 2,150 men will be diagnosed  with breast cancer and approximately 410 will die each year.