We've all been affected by cancer, so it's perfectly normal to be concerned about the risk it poses to us and our family. We're aware of the faulty genes that can run in families and that raise the risk of certain cancers, such as BRCA1 - the so-called 'Jolie gene', after actor Angelina Jolie - and its close cousin, BRCA2, for breast cancer. But just how common are they - and how do you know if your family is at risk?
Is my family affected?
Just because someone in your family has had cancer doesn't mean that you're at an increased risk of getting it too. Cancer is very common - around half of us born after 1960 will be diagnosed with some type of cancer during our lifetime*. Most cases are caused by gene faults that happen during our lives, due to ageing and lifestyle, such as smoking and excess weight.
Some, though an estimated 5-10% are due to inherited cancer gene faults, which put you at an increased risk of certain cancer types. These faults don't mean you'll definitely get cancer, and different gene mutations pose different risks. Some raise your risk by a small amount and others by much more.
Different genes are being discovered all the time. 'There are now 12 genes known to cause breast cancer, not just BRCA1 and BRCA2,' says Lester Barr, consultant breast surgeon and founder of charity Prevent Breast Cancer. 'If you have a strong family history of cancer, you could qualify for a genetic blood test, which will examine for mutations.'
This story is from the March 26, 2024 edition of Woman's Weekly.
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This story is from the March 26, 2024 edition of Woman's Weekly.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
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