BRCA2 Mutation Status (Genetic Test for Inherited Cancer Risk)

Why This Test Might Be Ordered

Your doctor may suggest this test if you have a strong family history of breast, ovarian, prostate, or pancreatic cancer. It could also be recommended if you’ve been diagnosed with certain cancers at a younger age or if you’ve had multiple cancers in different areas of the body. Some genetic counseling services also perform this test for people with Ashkenazi Jewish ancestry, as certain mutations are more common in this group.

What to Expect Before the Test

You’ll need a blood sample drawn from a vein in your arm, similar to other blood tests. No special preparation is usually required, but your doctor might ask you to avoid certain medications or foods for a short time if instructed. The process is quick and typically causes only mild discomfort.

What the Test Results Mean

Results can be one of several types: negative (no mutation found), positive (mutation detected), or variant of uncertain significance (VUS), which means the mutation’s impact is unclear. A positive result means you may have a higher risk of certain cancers and could benefit from closer monitoring or preventive measures.

How This Test Affects Your Care

If you have a BRCA2 mutation, your doctor may recommend more frequent cancer screenings, such as mammograms, MRI scans, or ovarian ultrasounds. They might also suggest preventive surgeries like mastectomies or oophorectomies, depending on your personal and family history. Genetic counseling can help you understand your risks and make informed decisions about your health.