The group made an announcement on Friday.
In early July, the band canceled an appearance at Italys AMA Music Festival,citing illness.
The messaging did not specify the need for an operation.
QUEEN OF THE STONE AGE performs live at IDAYS FESTIVAL, Milano, Italy, on June 24 2018Mairo Cinquetti/NurPhoto/Getty Images
The cancellations at the time included appearances in France, Germany, and Greece, among other countries.
The bandsupcoming North American tour datesare still on, though, per its website.
