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Breast cancer and genetics

Bernie Nolan and her daughter Erin
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As the third Nolan sister to get cancer, Bernie Nolan has announced she's getting her 10-year-old daughter tested for the breast cancer gene. But how much does genetics play a part in getting breast cancer?

Bernie's sisters Anne and Linda have both beaten breast cancer in the past. Bernie is now concerned that her 10-year-old daughter Erin (pictured right) could have the breast cancer gene.

Breast cancer and genetics

According to Cancer Research UK, having a history of cancer in your family doesn't necessarily mean that you're at a higher risk of getting it. Inherited genes actually only cause around 5-10% of cancers. And even if you do have a faulty gene passed on, it doesn't mean you are definitely going to get cancer.

Testing for a cancer gene

Cancer Research UK says: 'If you think you might have a family history of cancer, you should see your GP. Remember that cancer happens by chance in most cases, and is not due to an inherited faulty gene. If your GP thinks you might have a faulty gene, they will refer you to a genetic specialist, who will look at your family history in detail. Genetic testing is not straightforward, and it can take months for the results to be available.'

More on breast cancer

- Bernie Nolan has breast cancer: Read the full story
- Everything you need to know about breast cancer
- Video: How to check your breasts

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