The star is scheduled to undergo an operation in Los Angeles on Thursday (18Apr13), the day of his 20th birthday, to repair a haemorrhaging nodule on his vocal cords.
Reports suggested the group would be cancelling all upcoming appearances while Sykes recovers from the procedure, but a representative for the band has now confirmed The Wanted will be pressing ahead without the singer.
A statement from the band's management company reads "We can confirm that The Wanted's Nathan Sykes will undergo specialist throat surgery on Thursday 18th April in Los Angeles and as such will be taking unforeseen hiatus from The Wanted. The priority for Nathan, his label and management is that he is given time to recover and receive the best treatment possible. The remaining four members of The Wanted will continue fulfilling the bands promotional commitments across the world."