The King's condition is "benign" and he will be treated in the hospital next week for a "corrective procedure", Buckingham Palace said a statement released
on Wednesday.
"In common with thousands of men each year, the King has sought treatment for an enlarged prostate," the Palace said.
Because of the upcoming surgery, Charles had to postpone all meetings and events planned for this week.
The Palace informed that the King's public engagements will be "postponed for a short period of recuperation."
Charles, 75, wanted to share the details of his diagnosis to encourage more men who may be experiencing symptoms to get their conditions checked.