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03 February 2026
Cancer Runs in the Family? How Genetic Testing for Cancer Risk Can Help You Plan Ahead
If cancer runs in your family, it’s natural to wonder whether you may also be at risk of developing cancer. It is a very common and valid concern for many individuals and families.
The good news is that genetic testing can help with providing clearer answers and guiding you on what to do next, allowing you to plan ahead with confidence.
When Cancer Runs in the Family
Most cancers happen by chance, but some cancers are hereditary. This means a change (mutation) in a gene can be passed down from one generation to the next, increasing cancer risk within a family.
Some signs that cancer may be hereditary include:
- Several family members have the same or related types of cancer
- The cancer is diagnosed at a young age
- One individual developing more than one type of cancer
- Rare cancers occurring within the family
If these situations sound familiar, genetic testing for cancer risk may be worth considering.
What Is Genetic Testing for Cancer Risk?
Genetic testing for cancer risk looks for specific gene changes that are linked to an increased risk of certain cancers, such as breast, ovarian, colorectal, and prostate cancer.
This type of genetic testing does not diagnose cancer. Instead, it helps identify whether you have an inherited cancer risk, so you and your doctor can take appropriate preventive measures or begin screening early for timely detection.
Why Knowing Your Genetic Risk Matters
Understanding your genetic risk can help you:
- Start screening earlier or more frequently
- Choose targeted preventive strategies
- Make informed lifestyle and healthcare decisions
- Help family members understand their own risks
For many people, having this knowledge brings clarity and peace of mind, even when the results are normal.
If I Have the Gene, Will I Definitely Get Cancer?
This is a very common concern, and the answer is no.
Having a genetic mutation only means a higher risk, not a certainty. Many people with a genetic risk never develop cancer. That is why genetic results are always interpreted alongside medical history, lifestyle factors, and family background.
The Role of Genetic Counselling
Genetic testing should never be done in isolation. Genetic counselling plays a crucial role before and after testing.
Before testing, a genetic counsellor will:
- Review your personal and family history
- Explain what the test can and cannot tell you
- Help you decide whether testing is appropriate
After testing, the counsellor helps you understand your results and plan the next steps together with your healthcare team.
Understanding Risk, Planning Ahead
Genetic testing empowers patients to move from uncertainty to informed action. Whether the result shows an increased cancer risk or not, having accurate information helps you plan your health journey with confidence.
If you have a family history of cancer and are unsure what it means for you, speaking to our genomic medicine team is a good place to start.
For more information or to arrange an appointment, contact our careline below and our team will gladly assist you.
