Breast cancer happens when abnormal cells in the breast grow out of control. These cancer cells can form a lump or mass. Sometimes they spread to other parts of the body — this is called metastasis.

Breast cancer is the second leading cause of cancer deaths among women in North Carolina. In 2025, about 13,200 women will be diagnosed with breast cancer and more than 1,500 women will die from it.

More cancer data and projections

Symptoms

Not everyone has warning signs of breast cancer. Some women only find out during a routine mammogram.

Possible symptoms include:

• A lump or thickening in the breast or underarm (most often in the upper outer area of the breast)
• A change in the size or shape of the breast
• Unusual nipple discharge
• Skin changes on the breast, areola or nipple (dimpled, puckered or scaly or red)

Important: These symptoms can also be caused by other conditions that are not cancer. If you notice any changes, contact your health care provider right away.

Why Early Detection Matters

The earlier breast cancer is found, the easier it is to treat. That’s why regular mammograms and breast checkups are so important.

Learn more about your risk and how to protect your health: Risk and Prevention