What is BRCA genetic testing done with?

A blood draw or saliva collection provides cells containing your genetic material. The laboratory reads selected genes, often using a sequencing method that can examine many DNA positions. The report may identify a harmful change, find a change whose meaning is uncertain, or find no BRCA change in the regions tested.

A result can relate to inherited cancer risk and may also be relevant to close relatives. It does not by itself diagnose cancer. Genetic counselling helps explain what the test can and cannot show, including the difference between an inherited result and a change found only in a tumour.

Before testing, discuss your personal and family history with a qualified clinician or genetic counsellor. Ask what genes and types of changes the laboratory will assess, how results will be shared, and whether relatives may benefit from knowing the result.

Usually, the sample collection is brief. Keep the laboratory report and arrange a result discussion so the finding can be interpreted in context. A positive result may lead to a tailored screening or risk-reduction conversation; it does not mean that cancer is present.

Genetic testing itself is not an emergency. Contact your clinician if the result raises questions about a new lump, unexplained bleeding, persistent pain, or another symptom, because symptoms need their own clinical assessment rather than genetic testing alone.

Ask whether blood or saliva is more suitable, whether the test is inherited-risk testing or tumour testing, what an uncertain result would mean, and which relatives or screening decisions could be affected.