Our bodies are unique. Our cancers are too.

Breast Cancer Awareness Month celebrates, in part, how much better we understand how cancer behaves. But the great challenge for researchers remains: Cancer has many faces.

A woman performs a breast self-examination to check for changes in the tissue. Breast cancer is the most common cancer in women, and self-examination accounts for about 65 percent of breast cancer discoveries.
Photograph by Joel Sartore, Nat Geo Image Collection
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