Radio host Kyle Sandilands has revealed he needs urgent surgery after being diagnosed with a brain aneurysm.

Sandilands, 53, revealed the alarming diagnosis live on his Kyle and Jackie O Show on Kiis FM on Monday morning, after being absent from the radio last Tuesday and Friday.

He also took the chance to take a swipe at residents of one Australian capital city.

“On Friday, I was told by my medical team, which sounds like I’m already very sick, to have a medical team, that I have a brain aneurysm and it requires immediate attention, brain surgery,” he said.

“If you just tuned in to us after all these years, lap it up. And if you’re in Melbourne, you’re in the part, you’re coming to the party too late. You may get your wish. I may be dead.”

Sandilands and co-host Jackie ‘O’ Henderson have famously struggled to win listeners since launching their show in the Victorian capital a year ago.

On Monday, Henderson urged him to “think positive” about his looming surgery.

“That s–t doesn’t work in real life,” Sandilands said.

Sandilands, a father of a young son, did not say exactly when he would have his surgery. But he did say doctors had told him to avoid sex, heavy lifting and anything stressful.

“It’s not a blockage. It’s like, imagine your blood vessel is the garden hose, and the garden hose is weak and it blisters out like a big bubble, you know, like a puncture in it, like a bike tire with a big bubble that bubbles the aneurysm, so it’s not blocked,” he said.

“It’s like, it’s expanded and if it bursts, it’s either a vegetable in the wheelchair, or dead.”

It is the latest serious health issue for the radio host, who has also battled high blood pressure and with his weight. He got a check-up recently due to repeated headaches.

Sandilands said doctors would either do keyhole surgery or cut parts of his skull to get access to his brain to treat the aneurysm.

“I could die on the table, you just never know,” he said.

“The facts are a life of cocaine abuse and partying is not the way to go. But what a ride it’s been. Don’t make me laugh. I’m not allowed to get angry.”

The bombshell diagnosis follows Sandilands telling the Seven Network a year ago that he had to be “careful” about his life choices after living “hard, fast and recklessly” for years.

“So I sort of thought to myself, ‘What happens when I die? Like, how old will he (Otto) be?’” he said, adding his son’s birth made “everything so much more important”.

Otto, Sandilands’ son with wife Tegan Kynaston, turned two last August.

After the looming surgery, Sandilands will be away from his radio show for up to eight weeks.

He is also likely to miss judging duties for TV talent show Australian Idol.