The Barbarella star, who opened up about the health scare on Thursday (11Nov10), was having a routine check-up earlier this year (10) when her doctor discovered a small tumour.
The growth turned out to be non-invasive and she was booked in for surgery a few weeks ago, reports ETonline.com.
Fonda, 72, claims she is now cancer-free and has assured fans she is "fine" as she returns to work to promote her new Primetime Fitness DVDs, which are due for release later this month (Nov10).
The veteran actress recently credited her healthy lifestyle with her general wellbeing, saying, "I'm careful about what I eat, I stay active, walk a lot. I have good genes."