The soul diva's spokesman says Winehouse also suffered a cut above her eye after she tripped and fell at her north London house on Saturday.
Photos: Amy Winehouse
Spokesman Chris Goodman said Tuesday that the 26-year-old singer is recovering at a private clinic, and is expected to be fine.
Winehouse shot to stardom with the Grammy-winning album "Back to Black" in 2006, but her music has been overshadowed by drug use, legal run-ins and a tempestuous marriage that ended in divorce last year.
Goodman says she has been recording new material with producer Mark Ronson.