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Tiger King's Joe Exotic has revealed he has prostate cancer. 

The former zoo owner took to Twitter on Friday to share his cancer diagnosis, and once again pleaded for a pardon from President Joe Biden in the wake of his illness.

Exotic, 58, was convicted on 17 federal charges of animal abuse and two counts of attempted murder for hire in his plot to kill nemesis and Big Cat Rescue owner, Carole Baskin in 2019 - and sentenced to 22 years in prison. 

© Provided by Daily MailHealth concerns: Tiger King's Joe Exotic revealed he has prostate cancer via Twitter on Friday and pleaded for a pardon AGAIN in the wake of the diagnosis

In his social media post, Exotic wrote: 'John Phillips [Joe's lawyer] has received my medical records from FMC Fort Worth and my PSA count came back very high for prostate cancer. 

'The prison has approved testing to verify what stage it is in. My body is tired, I have lost a tremendous amount of weight, the mouth sores are out of control, I throw up more than I eat.'

He added that he didn't 'want anyone's pity' but was instead keen for a pardon from 'President Biden, VP Harris and the Attorney General', and he accused the police and the Department of Justice of corruption. 

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Exotic went on: 'Make this right and sign that pardon that Trump left behind so I can go home and get proper medical care and proper food.

'Thank you for all the love and support from all over the world. I love you all. Wish me luck.#JusticeForJoeExotic #TigerKing #JoeExotic @JohnPhillips.' 

The Kansas native requested a pardon from one-term President Donald Trump back in September, sending him a handwritten letter, later suing the Justice Department in December as a last-ditch effort - but this failed.

He most recently hired a new legal team, as they plan to use unaired Tiger King footage to push for a new trial. 

© Provided by Daily MailJailed: Exotic was convicted on 17 federal charges of animal abuse and two counts of attempted murder for hire in his plot to kill nemesis and Big Cat Rescue owner, Carole Baskin in 2019 - and sentenced to 22 years in prison

Attorney John Phillips of Phillips & Hunt, who previously represented the family of Baskin's missing husband Don Lewis, made the announcement in a video on Joe's Twitter.

He said: 'We are honored to announce that Joe has retained our firm. We're going to seek a new trial, and justice in the criminal and civil courts.'

Joe has also promised some juicy secrets in Tiger King: The Official Tell-All Memoir, which is set to set to be published in November. 

He told E! News of the book: 'It's going to be a truth-tell book... Everybody that's ever done anything good, it's going to be in there and anybody that's got bones in your closet, you better look out.'

© Provided by Daily MailHis nemesis: Carole Baskin is pictured with husband Howard at Big Cat Rescue

In April, Exotic claimed he has been 'kidnapped for a political agenda' in a furious audio recording as he continues to push for a presidential pardon. 

In an audio recording for the Social Media Superstar Awards and obtained by The Sun, the former zoo owner said his conviction cast 'a black cloud over our entire justice system in America' and claimed he had 'compassion for zoo animals and humanity. 

He said: 'What has been done to me puts a black cloud over our entire justice system in America and our leaders of this great country should be ashamed that our own Department of Justice can take part in kidnapping me for a political agenda to only end big cats in America.

'The real guy who has compassion and love for zoo animals, for the homeless, and for the sick, but most of all for humanity as a whole.

'I intend to use my new platform to speak for justice and prison reform and speak for the thousands of men and women in this country who have been wrongfully convicted or over sentenced in this country for simply no reason other than for profit.' 

Exotic said his conviction was a 'conspiracy' and an 'obstruction of justice' - as he continues to push for a presidential pardon, this time from President Biden.  

He continued: 'To all of the people in the streets of America trying to end racism; slavery is very much alive in America, folks. It is camouflaged by prison walls. 

'Please ask President Biden to make history and sign every pardon on his desk and every compassionate release at the beginning of his term, not at the end.'

© Provided by Daily MailPresidential pardon: The Kansas native requested a pardon from one-term President Donald Trump back in September, sending him a handwritten letter, later suing the Justice Department in December as a last-ditch effort (pictured in August, 2013)