Spinner Giles played in the first two Ashes Tests in Australia

Last month the 34-year-old Warwickshire spinner flew to Colorado for a third operation on his right hip.

"If everything goes to plan it will probably leave under a month left of the season," Giles told Five Live.

"You have to ask yourself, 'Is it worth pushing for that, risking going back a step, or do you just hang on and work hard during the winter?'"

Giles, who had been hoping to regain his England place this summer, will see a specialist in June to assess his condition.

"It is particularly frustrating. I can't put a timeline on that. I've just go to keep working hard, keep my chins up and keep smiling," he added.

Giles did not play for his county last season because of a similar complaint.

606: DEBATE Will Giles ever play for England again?

He returned to England's team for the first two Ashes Tests but was forced to return home when his wife was diagnosed as suffering from a brain tumour.

He was then overlooked for the World Cup in the West Indies in favour of Monty Panesar, before experiencing further hip discomfort on Warwickshire's pre-season trip to the Caribbean.