John Mayer's music career has been put temporarily on hold due to a serious throat condition called granuloma. "I'm bummed to have to bow out of both the iheartradio Music Festival in Las Vegas and an appearance with Tony Bennett in Los Angeles," the singer wrote on his Tumblr website. "I know there were people depending on me to be there and I'm sorry that I can't be on those stages."


Granuloma is a lesion that forms in the throat as a result of chronic irritation or trauma. According to the NYU Voice Center, patients may experience "hoarseness, chronic throat clearing, throat pain, cough (occasionally blood-tinged), and a sense of a 'lump in the throat.'" The condition is slow to regress, something Mayer revealed in his post that he's been struggling with for months.


"This is a temporary setback, though I'm not sure how long or short a period of time it will be," he writes. "I've got the best doctors in the country looking after me, and I will be singing and touring again as soon as I get the all clear. Until then I'll be spending time writing and composing more music and kicking an empty soup can around the West Village."


According to, it's likely that the singer will require voice therapy to fix whatever habits are causing the lesions. Otherwise, they're likely to be a recurring fixture throughout his career.


Mayer revealed that his anticipated next album, "Born and Raised," would have been released this fall — but it requires a few more vocal tracks to be polished off. He now anticipates, with a full recovery, that the work will be made available sometime next year.

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

John Mayer diagnosed with granuloma
Singer forced to cancel upcoming performances after non life-threatening condition derails his voice.