At a glance
A direct-to-consumer genetic test may not give you a full understanding of your breast cancer risk, especially if breast cancer runs in your family.
Background
Have you heard about people taking a genetic test on their own and learning about genetic mutations that may raise their risk for breast cancer? This type of test, called a direct-to-consumer genetic test, can be taken at home. It can tell you about your ancestry and genetic traits, including limited information about your risk for diseases like breast cancer.
What you need to know
For most women, a direct-to-consumer genetic test may not find if you have a higher risk for breast cancer.
The direct-to-consumer genetic test approved by the Food and Drug Administration (FDA) looks for 3—out of more than 1,000—BRCA gene mutations that can increase your risk for breast cancer.
Direct-to-consumer genetic tests do not take into account non-BRCA gene mutations or non-genetic factors that can increase breast cancer risk.
If you are considering taking a test
A direct-to-consumer genetic test may not give you a complete understanding of your breast cancer risk, especially if breast cancer runs in your family. If you think you may be at higher risk for breast cancer, it is best to work with a doctor or genetic counselor who can assess your risk, interpret your results, and build an action plan.
Action steps to understand and manage your breast cancer risk
- Find out if any close relatives on either your mother's or father's side have had breast cancer, especially before age 45, or ovarian cancer at any age.
- Tell your doctor about your family history.
- Ask your doctor if you are at high risk because of your family history.
- Ask your doctor about working with a genetic counselor to assess your genetic risk and build an action plan.
- Practice healthy behaviors to lower your risk, like keeping a healthy weight and being physically active.
My Family Health Portrait: Cancer
If you tested negative for a BRCA mutation
A negative result on a direct-to-consumer genetic test does not rule out the possibility that you carry other genetic mutations that increase your risk, including other BRCA genetic mutations not found by the test you took. If you have a family history of breast cancer, do not rely on a direct-to-consumer genetic test to assess your risk. Talk to your doctor about your results and what to do next.
Action steps to understand and manage your breast cancer risk
- Find out if any close relatives on either your mother's or father's side have had breast cancer, especially before age 45, or ovarian cancer at any age.
- Tell your doctor about your family history.
- Ask your doctor if you are at high risk because of your family history.
- Tell your doctor about your negative test result.
- Ask your doctor about working with a genetic counselor to assess your genetic risk and build an action plan.
- Practice healthy behaviors to lower your risk, like keeping a healthy weight and being physically active.
If you tested positive for a BRCA mutation
Discuss your test results with your doctor so that he or she can refer you for genetic counseling and you can create an action plan to manage your risk.
Action steps to understand and manage your breast cancer risk
- Find out if any close relatives on either your mother's or father's side have had breast cancer, especially before age 45, or ovarian cancer at any age.
- Tell your doctor about your family history.
- Tell your doctor you tested positive for a BRCA mutation.
- Ask your doctor what your results mean and to refer you to a genetic counselor to confirm your test results and build an action plan.
- Ask your doctor about working with a genetic counselor to assess your genetic risk and build an action plan.
If you’ve taken a test, but haven’t looked at the results
If you are scared or worried, take your test results to your doctor, who is better able to assess your breast cancer risk. Remember that a direct-to-consumer genetic test may not give you a complete understanding of your breast cancer risk, especially if it runs in your family.
Action steps
- Find out if any close relatives on either your mother's or father's side have had breast cancer, especially before age 45, or ovarian cancer at any age.
- Tell your doctor about your family history.
- Take your results to your doctor, who can help you read them and understand what they mean.
- Ask your doctor if you need to work with a genetic counselor to accurately assess your genetic risk and build an action plan.
- Practice healthy behaviors to lower your risk, like keeping a healthy weight and being physically active.