Sen. Tom Coburn (R-Okla.) underwent surgery Monday to treat an early form of prostate cancer, his office confirmed today.
"Dr. Coburn underwent a procedure this week to treat an early stage incidence of prostate cancer. He is expected to make a full recovery and return to his full-time duties later this month," Coburn spokesman John Hart said in a statement.
The Oklahoma Republican, who is a medical doctor, is currently serving his second term in the Senate and has pledged not to run for re-election in 2016.
The Oklahoman first reported the news of Coburn's surgery.
Coburn is a cancer survivor dating back to the 1970s. In 1975 he was treated for melanoma, and in 2003 he was treated for colon cancer. In 2007, he had surgery to remove a benign pituitary tumor.
Former Sen. Scott Brown, R-Mass., candidate for U.S. Senate in New Hampshire, holds his hand over his heart during the singing of the national anthem as he waits to take the stage for his town hall campaign rally with Sen. John McCain at the Pinkerton Academy in Derry, N.H., on Monday, Aug. 18, 2014.