OUCHIE: Kim Dotcom has broken his foot in a fall down a flight of stairs.

Internet entrepreneur Kim Dotcom has spent a day in hospital after breaking his foot falling down some stairs yesterday.

Dotcom was admitted to hospital last night with a fractured foot and severe back pain, according to Twitter.

"Day started great. But now I'm in hospital after falling. X-Ray shows foot fracture. Can't move, severe back pain :(," Dotcom tweeted yesterday.

He was out of hospital again tonight.

"Released from hospital today. Immobilized by broken foot & muscle spasms in back after falling some stairs. That's it. Starting diet NOW!" tweeted Dotcom.

Dotcom has been battling through a number of mishaps since the launch of his political party, the Internet Party.

The launch party was cancelled on advice from the electoral commission, and then its general secretary resigned less than two weeks after being appointed.

His electronic dance music album, Good Times, was released last week to scathing reviews.