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Genetic testing

Find out about the two types of genetic testing for ovarian cancer. Germline testing looks for inherited gene variants. Somatic testing looks for gene variants in the tumour.

What is genetic testing for ovarian cancer?

Genetic testing means taking a test to look for specific gene variants. The test will look for genetic variants that are linked to certain cancers, including ovarian cancer. It's also sometimes called a gene panel test.

There are two main ways that changes in our genes can be linked to cancer. You’re likely to be offered two types of genetic testing:

  • Germline testing (inherited genetic changes)
    This test looks for the genetic changes you were born with. They're in every cell in your body. They're passed down from one of your biological parents and can be passed down to your children. Some inherited changes can increase the risk across your lifetime of developing certain types of cancer, such as ovarian cancer. Find out more about germline testing for inherited genetic changes.

  • Somatic testing 
    This test looks for the genetic changes that happen in the cancer (tumour) cells. These changes aren’t inherited and can’t be passed on to your children. Finding these changes can help your treatment team understand how the cancer is behaving and which treatments may work best. Find out more about somatic testing (Homologous recombination deficiency).

Why am I offered genetic testing?

When you’re diagnosed with ovarian cancer, your treatment team are likely to offer you both germline and somatic testing. The results will help you and your treatment team to:

Genetic testing and hereditary ovarian cancer guide 2025

Genetic testing and hereditary ovarian cancer guide

Read or order our guide about genetic testing and hereditary ovarian cancer for free.

Find out more

Hereditary ovarian cancer

Find out what a family history of ovarian cancer means, whether your family are at risk of developing hereditary cancer and get advice on genetic testing.

Gene variants

Learn about how gene variants can cause cancer and the different gene variants that can increase the risk of ovarian cancer.

Getting tested

Learn what the genetic test involves and possible results. Find out what you may want to think about before deciding to have genetic testing.

What do the results mean for me?

Find out what your results mean and how you might feel.

What does a positive result mean for my family?

Find out what a positive genetic test result might mean for your family.

Homologous recombination deficiency (HRD)

Find out more about homologous recombination deficiency (HRD) and who is offered testing.

Managing your risk of other cancers

Understand how gene variants increase your risk of developing other cancers, such as breast cancer, and options to manage this risk.

Genetic testing for family members

Find information for your family members about getting tested for gene variants and options for managing their risk of ovarian cancer.

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Homologous recombination deficiency (HRD)

You should be offered testing for homologous recombination deficiency (HRD) if you have recently been diagnosed with stage 3 or 4 high-grade epithelial ovarian, fallopian tube or primary peritoneal cancer. This is as well as being offered a germline test for inherited gene variants.
Rachel and Val Target Ovarian Cancer nurse advisers

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Last reviewed: November 2025

Next review: November 2028

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References

Below is a sample of the references used in our genetic testing and hereditary ovarian cancer information. If you'd like more information about the sources we use, please email us at [email protected]  

  • Chandrasekaran D, et al. (2021) Implementation of Multigene Germline and Parallel Somatic Genetic Testing in Epithelial Ovarian Cancer: SIGNPOST Study. Cancers. 13(17):4344 Available at: mdpi.com/2072-6694/13/17/4344 [Accessed November 2025]