The midfielder has struggled with troublesome area this term and, while the club are hoping he will last until the end of the season, a more extensive look could be required
Everton boss David Moyes has revealed that Darron Gibson is likely to require surgery in order to overcome a persistent thigh problem.
The Scot is hopeful, however, that the former Manchester United midfielder may be able to play on until the end of the season as the Toffees' bid for European football next term heats up.
"Darron has a wee bit of calcification at the top of his thigh," Moyes told the club's official website.
"I think we are in control of him but there is a danger. We thought he might have needed an operation earlier in the year but the medical staff have managed it well.
"We think we can get away with it just now, but he is going to need it some time."
Gibson has started Everton's last six games after returning from injury and Moyes has been suitably impressed by the Irishman's contributions.
Moyes added: "I don’t question his character because he had come from a club that instils that in you. We are not going to let him roll over so we can tickle his belly.
"The injury has tempered him from shooting and taking corners. That is a big part of his game and at times I have considered not using him, but he has done okay.
"I think he can offer more but maybe it is just the injury holding him back a bit."