The balding Manchester United player Rooney revealed on Twitter that he had used his time off to visit a hair specialist.
"Just to confirm to all my followers I have had a hair transplant. I was going bald at 25, why not. I'm delighted with the result," he wrote on the social networking website.
"It's still a bit bruised and swollen when it dies down u will be first to see it. Anyone recommend any good hair gel. Haha."