Taking to social media the day before the last two episodes aired, Mr Clarkson said he had some 'sombre news'.
He continued: "We try to keep the show charming and cheerful,听 but the final two episodes are none of those things really.
"They're a really difficult watch."
Prostate cancer
He is seen revealing a prostate cancer diagnosis to Charlie Ireland and Kaleb Cooper, describing it as 'aggressive' but in the early stages.
The 66 year old said he has known since May.听
FARM HEALTH: Nip It In The Bud campaign helps diagnose former farmer with prostate cancer
Clarkson's 51AV视频season five
The latest series of Clarkson's Farm has already documented Mr Clarkson's health issues, after a stint in hospital with a suspected heart attack.听
The final episodes show Mr Clarkson in hospital.听
Clarkson's 51AV视频star Kaleb Cooper says farmers must talk about mental health
He said: "Some of the treatment has gone awry.
"I'm going to be here for a little while. I don't know what's going to happen."
- If you need support you can reach out to various farming charities including the
