Conditions that can raise your risk of breast cancer
Personal history. Women who have dense breasts, a breast disease that is not cancer, or who have had breast cancer before have an increased risk.
Family history. A woman's risk of breast cancer increases if her mother,
sister, daughter, or two or more other close relatives, such as cousins, have a
history of breast cancer, especially if they were diagnosed with breast cancer
at age 50 or younger.
A small number of women who have a family history of breast cancer have inherited changes to certain genes, such as BRCA1 or BRCA2, that increase their breast cancer risk.
Genetic tests are available to find out if you
have the genetic mutations long before any cancer appears. For more information, see:
Other things that increase the risk of breast cancer
Race. Breast cancer occurs more often in white women than in black, Hispanic, or
Radiation therapy. Women whose breasts
were exposed to significant amounts of radiation at a young age, especially
those who were treated for
Hodgkin's lymphoma, have an increased risk for
Not breast-feeding. Women who don't breast-feed have a higher risk of breast
cancer than those who breast-feed. The more months of breast-feeding, the lower
the breast cancer risk.
Alcohol. Your risk goes up the more you drink. For the best health, women should have no more than 1 drink a day or 7 drinks a week.
hormones play a part in some types of breast cancer. Your risk of breast cancer is higher if:4