The Anchorman actress had hoped to undergo her surgery in private and a guard had been placed outside her hospital room to make sure only authorised people were allowed in - but that didn't stop the media getting hold of the story.
And it only took a quick walk outside of her hospital suite.
She recalls, ""I was walking with my little IV drip thing, in my little robe. My friend said he saw someone take a picture of me. The next day I got a call from my publicist, who said, 'It's out'.""
Applegate tells More magazine she was still under anaesthetic when she sat down to draft a statement to the media.