Jeremy Clarkson, a former host of the BBC's wildly successful Top Gear franchise, says he has been diagnosed with an "aggressive" form of prostate cancer.The British TV star shared the news on an episode of his reality show, Clarkson's Farm, during a conversation with his coworkers, farm manager Charlie Ireland and farmhand Kaleb Cooper.After being told the farmers will need to begin harvesting crops at the end of July, Clarkson leans back and simply replies: "F***.""I've got cancer," he says.Jeremy Clarkson's co-stars react in shock to his cancer diagnosis. (Supplied: Prime Video)As his coworkers express their disbelief, Clarkson tells them he has known about the diagnosis since May, and has since had a biopsy which confirmed it was aggressive."But it's really early, so the treatment'll be … you know," he says, indicating he is hopeful of a positive outcome.He goes on to reassure Ireland and Cooper he will not delay treatment, despite admitting he had been "praying" they could finish the harvest before his surgery.After first telling his co-stars it is "of no concern [to] anybody" where his cancer is located, Clarkson later confirms he has had surgery to remove "10 per cent" of his prostate.Clarkson, centre, hosted the BBC's wildly successful Top Gear before he was fired from the program. (Supplied: BBC)But while the controversial host appeared upbeat about his prospects, the series ends with him being rushed to hospital after suffering complications."Some of the treatment has gone awry, let's say. I'm going to be here for a little while," he says from his hospital bed."If this is all successful, I'll see you for season six. And if it isn't, I won't."This latest episode is not the first health scare for Clarkson, 66, who also underwent urgent heart surgery in October 2024 after experiencing tightness in his chest.A doctor told him he was perhaps days away from suffering a heart attack due to blocked arteries.Diagnosis becoming increasingly commonClarkson's prostate cancer diagnosis makes him one of more than 64,000 men who will be diagnosed with the disease in the UK this year, a diagnosis rate which continues to increase.One in eight UK men will be diagnosed in their lifetime, according to Prostate Cancer UK.The disease is even more prevalent in Australia, where one in five men can expect to be diagnosed with prostate cancer by the age of 85.Another cast member on Clarkson's Farm, 77-year-old Gerald Cooper, was also recently diagnosed with prostate cancer, telling his story on the show's third season in 2024.Jokingly nicknamed the farm's "head of security", Cooper has since made a full recovery.