No. Every woman has some risk of breast cancer. About 70% to 80% of women who get breast cancer have no known family history of the disease. Increasing age -- just the wear and tear of living -- is the biggest single risk factor for breast cancer.
For those women who do have a family history of breast cancer, their risk may be elevated considerably, slightly, or not at all, compared to women without a family history of breast cancer. If a woman is concerned about her family history of breast cancer, she should discuss it with her physician or a genetic counselor. She may be worrying needlessly.
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