AceShowbiz -

Leona Lewis is advised by experts from both Britain and America who said that she will need to get her tonsil cut out if she wants to retain her voice. The top throat surgeons however, convinced Lewis that she may not have to endure a lost of voice that has produced mega-selling single "Bleeding Love".

The X factor winner is juggling numerous duties behind her debut release "Spirit" that will hit U.S. on April 8 but she has suffered from tonsillitis, a kind of throat infection, in the past few weeks. "She needs to try and rest because it tends to flare up when she is tired and run-down," a source said. "But that's really difficult with her current schedule. She suffered throat problems a few times last year and earlier this year. Leona's worried this may become a long-term problem and wants to sort it out."

The source added, "Leona has been consulting top throat surgeons in Britain and America. She has been told she could need an operation to put an end to the problem for good. Any operations are scary. But for a singer to have a throat op is particularly terrifying."

A representative of Lewis has confirmed that surgery is within her consideration. "Leona would like to reassure fans this is a routine operation which will not affect her voice," the spokesperson said. "She has sought specialists' advice for this. If an operation becomes necessary, it would be a routine procedure."