Sam Smith's plans for a second album are on hold.

The 22-year-old singer recently cancelled a series of tour dates in order to undergo emergency surgery on his vocal cords, and his next LP - the follow-up to 2014's 'In the Lonely Hour' - has also been delayed by the health scare.

A source revealed: ''Sam hopes to be back in eight weeks to finish his promotional commitments for his debut album.

''After that the doctors have told him to give his vocal cords some time out before coming back with his second album.''

The 'Lay Me Down' hitmaker is expected to have made a full recovery after eight weeks, although health experts have warned him he could cause ''serious damage'' if he dives back into singing by making his sophomore record.

The source told the Daily Star newspaper: ''The prognosis for surgery is good but Sam has been told to see this as a huge warning.

''He has not stopped working and performing since his album was released a year ago and he is risking serious damage to his voice. He has been a victim of his own success.''

Meanwhile, Sam's songwriting partner Jimmy Napes recently revealed the pair have already written plenty of material for the collection, although are yet to record any of the tracks.

He said: ''We have never stopped writing but haven't had time to go in the studio to put anything down.''