Jasmine Sanders closes with five essential breast-cancer facts: mammograms can find cancer before symptoms appear, a biopsy is needed for a definitive diagnosis, cancers may be invasive or noninvasive, surgery commonly involves either lumpectomy or mastectomy, and factors such as age, family history, and breast density can affect risk. Current guidance recommends mammograms every two years for women ages 40 to 74 at average risk, while those with dense breasts should discuss their personal risk and possible additional screening with a clinician.