A fit and healthy Brisbane father-of-two had no symptoms, no pain, and no warning signs until a routine check-up revealed he had prostate cancer at just 45. 

Matt Granfield has urged men not to delay cancer screenings after a New Year health check flagged concerning results last February. 

The Aussie dad had been getting tested every year after both his father and his grandfather were diagnosed with the disease. 

For the first time, Mr Granfield's PSA, a protein in the blood linked to prostate cancer,  was higher than normal.

A repeat test three months later showed PSA levels had climbed again. Doctors ordered scans and then a biopsy, which confirmed the cancer in May.

'That was a big "whoa" moment. At 45-years-old, I didn't expect that cancer (and) hearing that word is so scary,' he told the Daily Mail.

'I burst into tears, like, "What am I going to do? How can I deal with this?"

'I started freaking out, going, "Oh my god, I'm going to have erectile dysfunction for the rest of my life. I'm going to have hormone treatment". 

'It was a really brutal, awful time not knowing what I was facing or whether I would be cured and what my prognosis was.'

Matt Granfield (pictured with his sons Jack, 8, and Will, 10) was diagnosed with prostate cancer after an annual health check-up revealed he had a high prostate specific antigen level

Mr Granfield said it was brutal hearing the news of his diagnosis

Doctors told Mr Granfield he needed to undergo a robotic radical prostatectomy, a minimally invasive procedure, to remove the prostate immediately. 

'I freaked out. My dad got diagnosed when he was around 65. He's 75 now. He's still living with cancer because he didn't get it early enough, so it spread,' he said.

'He's still going through radiation treatment 10 years later. So it has a massive psychological impact. 

'I didn't think I was going to die or anything that dramatic, but it was an incredibly intense moment - suddenly, at 45, you're told you've got cancer.' 

Mr Granfield said he and his ex-wife, the mother of his sons Jack, 8, and Will, 10, told the boys he was having an operation but avoided explaining his diagnosis. 

Following surgery in September, Mr Granfield was cleared of cancer in December. 

'It's been a rough year of leaking and erectile dysfunction and blood tests. I've got lots of scars from the surgery,' he said. 

'But because I'm young and fit and caught it early, everything's working again... There is a 99 per cent chance that it will never come back. 

After his surgery, Mr Granfield (pictured) has 'lots of scars' but is cleared of cancer

The father-of-two is now urging Australians to regularly get checked for cancer