No one in your family has breast cancer? That’s a good thing, but it doesn’t mean your totally off the hook. You still need a regular screening program.
A woman’s risk of breast cancer approximately doubles if she has a first-degree relative (mother, sister, daughter) who has been diagnosed with breast cancer. Less than 15% of women who get breast cancer have a family member diagnosed with it.
About 85% of breast cancers occur in women who have no family history of breast cancer. These occur due to genetic mutations that happen as a result of the aging process and life in general, rather than inherited mutations. The most significant risk factors for breast cancer are gender (being a woman) and age (growing older).
In women under 45, breast cancer is more common in African-American women than white women. Overall, African-American women are more likely to die of breast cancer. The risk of developing and dying from breast cancer is lower in Asian, Hispanic, and Native-American women.