Last October, John Mayer had surgery for a throat condition that kept the singer silent for a month to recover.

Now, as he was rehearsing for his upcoming tour, a visit to the doctor has cancelled that tour and sidelined John once again.

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Last summer, John Mayer began having throat difficulties due to a granuloma. After resting his voice for two weeks it was decided that surgery was in order. On October 23rd, John had the surgery to remove the granuloma and then was on "complete silence" rest for a month while he recovered.

On his tumblr blog Friday March 9th John Mayer revealed that the granuloma has returned.

I have no choice but to take an indefinite break from live performing. Though there will be a day when all of this will be behind me, it will sideline me for a longer period of time than I care to have you count down.

John Mayer's tour was set to start March 15th in support of his latest CD- "Born and Raised" which is still due to be released May 22nd. The album had been pushed back from a fall of 2011 release date due to the granuloma in October.

I’m pretty emotionally burnt out at the moment, but please know how hard I tried to resolve this and how disappointed I am that I can’t perform this record yet.

The next step in resolving the granuloma will involve another surgery and a "chemically induced" long period of silence.

The only thing that stops me from devolving into a puddle of tears is knowing that it’s a long life, and the greatest gift in the world is being able to create music no matter what the circumstances. So these are the new circumstances, and I’ll find a way to make it mean something. That’s all you can ever do.

Though you can't see him on tour, you can listen to the first track from the "Born and Raised" CD-