Pregnant lotion rub

According to a study in BMC Pregnancy and Childbirth, nearly 50 percent of women develop stretch marks during pregnancy. Many will see the purple or white lines appear on their abdomen, thighs, arms and breasts. The stretch marks form when the skin rapidly expands and its elastic tissue tears. Genetics likely play a part in determining if you will get stretch marks. According to study in the Journal of Investigative Dermatology, four genetic markers seem to be linked with stretch marks. Particularly, one DNA sequence variation linked with pregnancy-related stretch marks was located close to the elastin gene.

Thinking about investing in some of those tempting stretch mark creams? According to one study, you might want to save your money, or spend it more carefully. Frank Wang, M. The problem with a lot of the current creams and other modalities available is that they don't seem to be able to effectively prevent those changes—or, for that matter, repair those changes once they've occurred.

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Caused by tiny tears in the layers of tissue supporting your skin, stretch marks can pop up during or after pregnancy. These days, there are near-countless products on the market that promise to target these lines. In short, there is no miracle cure for stretch marks.