25 Breast Cancer Myths and Misunderstandings

See the most common breast cancer myths and get the facts about them with our quick guide.
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Myth: Most breast lumps are cancerous.

Reality: Roughly 80% of lumps in women's breasts are caused by benign (noncancerous) changes, cysts, or other conditions. Doctors encourage women to report any changes at all, however, because catching breast cancer early is so beneficial. Your doctor may recommend a mammogram, ultrasound, or biopsy to determine whether a lump is cancerous.