The 'Red Sonja' star's surgery was broadcasted uncensored on "From Old to New: Brigitte Nielsen in the Celebrity Clinic."
It included liposuction on her thighs, Botox treatment and a breast reduction.
"I know I will be breaking a taboo," New York Daily News quoted her as telling Daily Mail.
"But I'm sure that it will provoke a new discussion. It's time things change. I feel 30 and want to look that way again," she added.