BRCA Gene Test
A genetic test for BRCA1 and BRCA2 changes, which greatly increase the risk of breast and ovarian cancer.
Quick Summary
For people with a strong family history or certain cancers.
Changes in the BRCA1 and BRCA2 genes.
Genetic counselling before and after.
Overview
A positive result changes screening and prevention options for the person and relatives.
Most breast cancers aren't caused by BRCA changes.
What It Measures
BRCA1 and BRCA2
Harmful variants.
How It's Performed
- 01
Counselling
Discuss benefits and implications.
- 02
Sample
Blood or saliva.
- 03
Results
Explained by a counsellor.
Interpreting Results & Next Steps
Discuss with Doctor
Your doctor will explain what your result means and what happens next.
If values are High:
A harmful variant means higher risk; options include extra screening and preventive treatment.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- BRCA Genetic Test(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Genetic tests to check your cancer risk(opens in a new tab) · NHS