If you\u2019ve recently experienced a rapid change in weight or growth, or pregnancy, you may have been left with stretch marks. These marks often appear on the skin as pink, purple, or red indented streaks that can later fade to white or flesh-colored indentations. But what causes these undesirable marks, and how can you get rid of them? Read the facts below to learn more.\nWhat Are Stretch Marks?\nStretch marks \u2014 or striae \u2014 are a form of scarring that occurs as a result of rapid stretching of the dermis, which is the middle layer of the skin.\nWhat Causes Stretch Marks?\nAdolescents who experience rapid growth during puberty commonly develop striae. Individuals who have gained or lost a significant amount of weight in a short amount of time, or pregnant women may notice the appearance of stretch marks after their pregnancy.\nOther causes of stretch marks include:\n\nAdrenal gland diseases\nCushing\u2019s disease\nMarfan syndrome\nEhlers-Danlos syndrome\n\nMedications, such as systemic steroids, or overuse of corticosteroid creams can also cause stretch marks.\nWhere Do Stretch Marks Appear?\nStretch marks can show up anywhere that your skin is suddenly stretched but most commonly develop on the abdomen, breasts, buttocks, thighs, and upper arms.\nWhen Should I Seek Treatment?\nThe earlier stretch marks are treated, the better the results will be. The best time to treat is when marks are in the pink, purple, or red stage.\nWhy Can\u2019t Stretch Marks Be Prevented?\nWhen your body changes quickly, such as during puberty or pregnancy, your skin does not have time to keep up. Marks often cannot be prevented during these changes since the fibers of the skin are rapidly stretching, creating the wrinkled external appearance.\nA common myth is that cocoa butter or cream can prevent these marks from developing, which is not the case. If you avoid losing or gaining weight quickly, you may decrease the likelihood of developing marks.\nHow Are Stretch Marks Treated?\nStretch mark cream\nAlthough preventing or eliminating striae completely is unlikely, some treatment options can minimize their appearance. Lotions and creams with retinoids, such as Retin-A\u00ae, can promote collagen production and reduce redness, which may be helpful with reducing the overall appearance of marks.\nLaser treatment for stretch marks\nWhen marks are newer and appear pink, purple, or red, a pulsed dye laser (PDL), like CynergyTM, can be used to reduce their color, making stretch marks\u00a0less visible.\nFor marks that are flesh-colored or white, fractionated lasers, such as CO2RE\u00ae Fractional or PearlTM Fractional, can stimulate elastin production and help make stretch marks less noticeable.\nWhile stretch marks may be unsightly, you do not have to live with them forever. There are a number of different ways to treat them through the use of the above procedures. The important thing is to find the treatment that is right for you and your body. If you think you may benefit from one of these treatments, talk to your dermatologist. For more information, please visit the UPMC Cosmetic Surgery and Skin Health Center website.