The Grammy winner axed gigs in her native Britain in September as she tried to overcome a chest infection, but the strain on her voice became too much and she scrapped her 10-date American trek, which was due to kick off earlier this month.
Adele rescheduled the shows for a later date but she's now changed her mind and canceled all live performances for the rest of the year so she can completely rest her vocal cords.
A statement on the singer's official website reads, "It is with deep regret that Adele has been forced to cancel her remaining live dates and promotional appearances in 2011.
"She is to undergo surgery to alleviate the current issues with her throat and a full recovery is expected. As a result, doctors have ordered her to rest her voice and completely recuperate before looking to schedule any work commitments."
Ticketholders for all shows have been offered refunds for the canceled concerts. Adele will, however, be releasing a DVD of her show at the Royal Albert Hall on November 29.