Breasts Health
Question: My aunt was diagnosed with breast cancer, and I
have heard that other members of my family might have had it as well. What is
the significance of family history in relation to my risk for breast cancer?
Answer: About 12% of American women have a family
history of breast cancer. These women have a lifetime chance of breast cancer,
about twice that of the general population. The lifetime risk for developing
breast cancer in the general population is about 11-12% while it is 20-25% for
those with a family history. A family history means that two or more close
family members (mother, sister, grandparent, or aunt) have or had breast cancer
that was diagnosed before they turned 50. Family history on the father's side
is as important as that on the mother's side. The more family members that are
involved, the greater the risk of breast cancer. A family history of ovarian
cancer is also considered a risk factor for breast cancer.
Most individuals or families with breast cancer do not
have genetic mutations. But studies have shown that families with several
members who have breast or ovarian cancer, particularly at an early age, are at
increased risk for having a genetic mutation. It is important to know that a
family history of cancer does not mean a person will get cancer. Many other
factors may play a role. You should discuss with your doctor your risk for
cancer and any additional screening tests you may need.
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