An Australian reality star was alerted to cancer after a viewer spotted a lump on her neck during a TV appearance.

Keep scrolling to find out more about this incredibly heroic story...

It's a tragic reality that around 9.6 million people died from cancer last year...

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And every sixth death in the world is due to cancer, making it the second leading cause of death.

This is a very personal topic to many...

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As nearly everyone knows or has lost someone dear to them from this collection of diseases.

Cancer is a cruel illness...

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And the chance of a person - no matter how old they are - losing their life is scarily high.

But if cancer is caught early...

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The chances of survival are significantly higher.

One reality star recently proved this...

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And it was all thanks to an eagle-eyed viewer who was watching her on TV.

This is Bree Amer...

And the thirty-seven-year-old rose to fame back in 2004 after appearing on Big Brother Australia - a reality show that consists of a group of strangers living in isolation together.

Bree now works in TV production...

And she has settled down with a family of her own... so it's clear to see that she's living the dream.

But back in 2006...

Bree had the scare of her life.

Bree made a TV appearance when she was twenty-four...

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And a doctor who just happened to be watching when he noticed something concerning about the reality star.

He noticed an unusual lump on Bree's neck...

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He desperately tried to contact the show that Bree was on to warn her and eventually, he got through to her.

The doctor went the extra mile for the reality star's safety...

Speaking with the Daily Mail Australia, Bree revealed how the caring doctor ended up spending nearly $400 calling through to Mike Goldman’s Up Late’s competition line, desperately wanting to advise her to get herself checked out.

Somehow, Bree had never noticed the lump...

And she was left impressed by the unnamed doctor’s skills of observation.

It took the doctor around a year to get in touch with the reality star...

"When I turned my head on the [Friday Night Live] panel, a lump protruded out of my neck – I had an inch and a half tumor that I never noticed. He saw it and I came back a year later and it was bigger. He tried to get in contact with me for like a year," Bree explained.

Bree ended up getting the doctor’s message purely by coincidence after one of her former Big Brother housemates visited his surgery one day.

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It was then that he asked them to pass on his observations to Bree directly. She initially thought he was "a bit bonkers", but a visit with her own GP confirmed the doctor’s concerns.

She was eventually diagnosed with thyroid cancer...

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And she ended up having to go through two surgeries, as well as radioactive iodine treatment.

Bree stated that she is "really lucky" that the persistent doctor decided to get in touch.

And she said that she is "well and truly out of the woods when it comes to cancer."

But of course...

She still has to undergo monitoring checkups every 6 months for her thyroid to be safe.

We're just glad that Bree is alive and well...

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And just like her, we're very grateful to the caring doctor who went through so much to warn her. Keep scrolling to read about the journalist who was diagnosed with breast cancer live on air...