When you grow or gain weight quickly, your skin takes a beating. When it's overstretched, the normal production of collagen (the major protein that makes up the connective tissue in your skin) is disrupted - Hello stretch marks.
This usually happens during pregnancy or puberty (as if surviving those events aren't hard enough - now we have scars to prove it). Both women and men get them. The million dollar question is, how do we get rid of them?
Unfortunately all those creams and lotions that claim to help don't do a darn thing.
You'll have to visit a dermatologist or plastic surgeon if they're really bothering you. They can perform procedures such as microdermabrasion and laser treatment - these reduce the appearance of stretch marks. But you'll pay a pretty penny for these techniques and your insurance won't cover them.
Fit's Tips: Embrace your stretch marks - and take advantage of fashions that hide them. When you're in the sun, choose higher neck bathing suits or ones with boy cut shorts. Some suits even have little skirts attached, or you can wrap a pretty scarf or sarong around your hips.
And make sure to use sunscreen on the areas where you have visible stretch marks - your skin will tan, but your stretch marks won't, making them even more noticeable.