Amanda Holden broke her leg in two places after an accident sustained during a family holiday in Europe.
She had to have an operation to place a metal plate in her leg following the accident.
The Britain's Got Talent judge was playing with her daughters Alexa, 13, and Hollie, seven, on an inflatable assault course in the sea when she slipped and snapped her fibula in two places.
Confirming the news, the TV star said: "Sadly this is true. I suffered a nasty accident while playing in the sea with the family during our half-term holiday and subsequently broke my leg in two places.
"I had an operation on Friday and a metal plate was fitted."
Despite the surgery, a spokesperson for Holden confirmed she would return to host her Heart Breakfast radio show on Monday.