25 wacky questions about plastic surgery: we launched an investigation into everything from boob jobs to Botox ... and we mean everything. No topic was too weird for us to tackle.(TOTALLY COSMO)

Cosmetic surgery has reached a fever pitch among young women. Aside from the bevy of gorgeous celebs in their 20s and 30s who have had work done, females outside Hollywood are tweaking their looks more too. The American Society of Plastic Surgeons found that 40 percent of women who had a surgical procedure in 2007 were between ages 20 and 39.

What's driving the boom? "It's gotten cheaper," says Arthur Perry, M D, author of Straight Talk About Plastic Surgery, "and it's 'also more socially acceptable." And MDs report that females in their 20s are opting for preventative Botox. You probably even know someone who's had plastic surgery and, with 'all the buzz, have some questions you're dying to ask on the subject. Here, what's true and what's BS.

Q can you gain weight again after lipo? Can some people who've had it still not be skinny? And if you get your stomach sucked, will fat accumulate in other body parts?

Yes to all. If you eat more calories than you burn, you'll gain weight, even following lipo. And added poundage will indeed relocate. Your body doesn't produce fat cells after adolescence, so once you remove those cells via lipo, fat won't deposit in the areas worked on. But it has to go somewhere.

Q After getting lipo, will the excess skin shrink back to size?

Probably. It depends on your genes and how elastic your skin is. If you have stretch marks (i.e., because you gained the weight quickly), that's a sign your skin has little elasticity and isn't likely to shrink back completely. The loose flesh will just hang there.

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