ST. PAUL, Minn. (AP) — Garrison Keillor, host of public radio’s popular “A Prairie Home Companion,” says he’s canceling an upcoming show to undergo a medical procedure.

Keillor didn’t specify the procedure but says: “I now know more about the prostate than I ever wanted to.”

The 72-year-old humorist and best-selling author says the procedure is set for Sept. 25, so he’s canceling a Sept. 27 show at the Fitzgerald Theater in St. Paul. But he says the season opener, street dance and meatloaf supper is still set for Sept. 20.

In his signature dry humor, Keillor released a statement saying he’s found an excellent surgeon, and is looking forward to “thinking more about truth and beauty and less about plumbing.”

“A Prairie Home Companion” celebrated its 40th anniversary this summer.

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