The Rolling In The Deep singer is currently performing her Weekends With Adele series at The Colosseum at Caesars Palace.
Despite putting on an incredible string of shows for her fans, the 34-year-old Grammy winner is having to “waddle” around the stage due to the debilitating nerve issue.
At her New Year’s Eve show, the Hello hitmaker was reportedly handing out T-shirts to fans when she complained about her chronic back pain, which made it difficult to run from one side of the venue to the other.
In quotes obtained by Daily Star, she said: “I’ve got two more, I’ve just got to get over to the other side of the stage.
“I have to waddle these days as I have really bad sciatica.”
Adele - In pictures
It’s not the first time Adele has spoken about her struggle with the nerve pain, having previously discussed how the health issue has impacted her life.
“I’ve been in pain with my back for, like, half of my life, really,” she told The Face. “It flares up, normally due to stress or from a stupid bit of posture.”
Adele explained that she first slipped a disc when she was just 15 then last January, she slipped another.
She recalled: “I was in bed and I sneezed and my fifth one flew out.”
“And then where I had a C-section, my core was useless,” Adele told the outlet, as she discussed her newfound motivation for working out and the benefits she’s seen since focusing on her health.
The Standard has contacted Adele’s rep for comment.
Included as part of an ‘Emperor Package’ provided by Caesars Entertainment, these tickets are being priced at an astonishing $5 million (£4.1 million).
The package provides 12 tickets to the Las Vegas Formula 1 Grand Prix next November – and only two tickets for Adele’s concert at Caesars Palace in Sin City, angering hopeful residency attendees.
The expensive price tag may not come as such a surprise to some, as standard tickets for the inaugural Las Vegas Grand Prix were initially being sold for £2,000.
Fans branded the pricey package as “sickening” on Twitter as they posted their outrage at the ticket prices.
One person wrote: “Absolutely sickening that F1 is even allowing this! Why would I even consider a race in the US when I can easily and am go to Europe (sic) to see a race for a fraction of the cost and that includes airfare and hotel.”
A second said: “This is so ridiculous! Is this what a formula 1 Emperor Package has come to? I am fuming why only 2 tickets to Adele’s Residency at Caesar’s Palace? We need 12! Fix this!”
“The two Adeles residency really seals the deal if they were on the fence of why would you spend 5 million,” a third commented.
Those purchasing the ‘Emperor Package’ can also expect to receive a five-nights stay at the Nobu Sky Billa, a private dinner with Chef Nobu Matsuhisa and a 24-hour butler.