Risk factors for breast cancer
Age: Your risk for breast cancer goes up the older you get.
Ethnicity: Breast cancer is the leading cause of cancer death in Hispanic women, and more common in African American women under age 45.
Genetics: 5-10% of breast cancer cases are hereditary, resulting directly from gene defects.
Family history: First-degree relationships (mother, sister, daughter) with breast cancer doubles your risk, but 75% of women diagnosed have no family history.
Weight: Overweight or obese women have a higher risk of developing breast cancer.
Dense breasts: Women with dense tissue in their breasts are 1.4x more likely to develop cancer.