Celebrity Traitors star Alan Carr has opened up about how he was left completely incapacitated after battling a debilitating health condition last year.

The popular TV host and comic is one of five celebrities who will appear in the finale of the first ever Celebrity Traitors series tonight (Thursday, November 6). He will be joined by former rugby star Joe Marler, actor Nick Mohammed, historian David Olusoga and singer-songwriter Cat Burns.

The star made the candid admission during an appearance on singer (and fellow Celebrity Traitors star) Paloma Faith's Mad, Sad and Bad podcast earlier this year where he shared details of his issue.

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When the 48 year old was quizzed about any concerns regarding getting older, he confessed: "I had sciatica last year and I couldn't do anything."

However, staying true to his trademark wit, the funnyman managed to find humour in his health struggles: "When you're younger, you're so arrogant, you think people get old for a bet. You think 'oh look at that man, he's got a stick for a laugh'."

He went on to say that his recent bout with sciatica had 'knocked him for six', reports Surrey Live.

The NHS explains that sciatica occurs when the sciatic nerve, which extends from your lower back down to your feet, becomes irritated or compressed.

The condition typically improves within a few weeks to a few months, though it can persist for longer periods.

Sciatica "usually affects your bottom and the back of one leg, often including your foot and toes".

Signs of the condition may include a sharp, burning sensation down the back of the leg, tingling, numbness and weakness.

Experts estimate that roughly 40% of the UK population will experience the condition at some stage during their lives.

Alan has become a familiar face on our telly over the past two decades, but his television career really kicked off in 2007 when he hosted his own programme, Alan Carr's Celebrity Ding Dong, which aired on Channel 4 until 2009.

Following the conclusion of his first eponymous show, Alan bagged another, this time presenting the massively popular Alan Carr: Chatty Man from 2009 until 2016 after filming 16 series. Such was the success of the show, Alan was awarded a BAFTA for Best Entertainment Performance in 2013.

Catch Alan in the Celebrity Traitors final tonight (Thursday, November 6) from 9pm to 10.10pm on BBC One.