The burlesque star, who is currently launching her budget lingerie range in Australian Target stores, said that underwear should evoke "femininity" and "mystery" rather than be all about sex.
Von Teese told The Daily Telegraph: "Like most women, I have plenty of insecurities about the way I look. But I'm not going to point out my flaws, because then they'll be more noticeable. The world would be a better place if women kept their insecurities to themselves. I say, 'Accept them, live with them'.
"Anyone can be sexy and beautiful. It's about creating a mystery that makes people want to know more about you. There's a difference between sexy and trashy, but you can't define it."
Von Teese said that she was a "late bloomer" and remembers being "devastated" when her mother bought her a training bra instead of lingerie.
She added: "When I first started working, I saved up all my money to buy a bra of my own choice. I still have the lingerie I first bought as a teenager. I'm sentimental about it.
"I love the history of lingerie and the way it evokes femininity, sensuality and mystery. I've never equated it with sex or what men want - it's a great thing women have for themselves. I wear nice underwear because it makes me feel good."
Von Teese said that she has always been "comfortable with nudity", saying that burlesque doesn't have to be seen as "vulgar" because her shows can be "elegant".
> Dita Von Teese: 'I don't really care if everyone doesn't like what I do'