Stretch marks are a normal part of puberty for most girls and guys. When a person grows or gains weight really quickly (like during puberty), that person may get fine lines on the body called stretch marks. Stretch marks happen when the skin is pulled by rapid growth or stretching. Although the skin is usually fairly elastic, when it's overstretched, the normal production of collagen (the major protein that makes up the connective tissue in your skin) is disrupted. As a result, scars called stretch marks may form. If you're noticing stretch marks on your body, you're not alone. Most girls and women have them, usually on their breasts, thighs, hips, and butt. Many women get them during pregnancy. Stretch marks are more common in girls, but guys can get them, too. People who are obese often have stretch marks. Bodybuilders are prone to getting stretch marks because of the rapid body changes that can go with bodybuilding. People who use steroid-containing skin creams or ointments (such as hydrocortisone) for more than a few weeks may also get stretch marks. So might people who have to take high doses of oral corticosteroids for months or longer. At first, stretch marks may show up as reddish or purplish lines that can look indented and have a different texture from the skin around them. Stretch marks often turn lighter and almost disappear over time. Making Them Less Noticeable Here are some things to consider if you want to make stretch marks less noticeable: Some people find that sunless self-tanners can help cover up stretch marks. This isn't true with regular tanning or tanning beds, though: Stretch marks are less likely to tan so may end up looking more obvious. Plus, the sun and tanning beds do more harm than good when it comes to the long-term health of your skin. Try using body makeup matched to the tone of your skin to cover stretch marks. Although some manufacturers make these cover-up products water-resistant, makeup may not be the best solution if you'll be spending a lot of time in the water. Wear board shorts or rash guards. Bathing suits with more coverage are popular with many athletes because they protect against the sun and don't ride up when a person moves. But these suit styles also work well for hiding stretch marks on the buttocks, upper thighs and chest. Tons of creams and other skin products on the market claim to get rid of stretch marks, but the truth is that most don't work and are costly. You can't make stretch marks go away completely without the help of a dermatologist or plastic surgeon. These doctors may use one of many types of treatments — from actual surgery to techniques like microdermabrasion and laser treatment — to reduce the appearance of stretch marks. These techniques are expensive and are not usually covered by insurance. Doctors don't usually recommended them for teens because they're not done growing so new stretch marks might appear and existing ones will probably lessen over time. Back to Articles Related Articles Can Acne Scars Be Removed? Scars from acne can seem like double punishment - first you had to suffer through the pimples, now you have marks to remind you. Is there anything you can do? Read More Tips for Taking Care of Your Skin Sometimes it may seem like your skin is impossible to manage, especially when you find a huge zit on your nose or a cold sore at the corner of your mouth. Here are ways to prevent and treat common skin problems. Read More Skin, Hair, and Nails Our skin protects the network of tissues, muscles, bones, nerves, blood vessels, and everything else inside our bodies. Hair and nails are actually modified types of skin. Read More Body Image and Self-Esteem When your body changes, so can your image of yourself. Find out how your body image affects your self-esteem and what you can do. Read More Help! Is This My Body? Your body's changing - and if you've ever felt out of step with it, you're not alone. Find out how to deal with body changes and feelings in this article. Read More Cellulite Cellulite is the lumpy look ("cottage cheese") commonly found on the thighs, stomach, and butt. It's due to collections of fat that push against the connective tissue beneath the skin. Read More Plastic Surgery Lots of images may come to mind when you think of plastic surgery. This special type of surgery involves a person's appearance and ability to function. Read More Strength Training Is working out with weights safe for teens? The best way to build muscle tone and definition is to combine aerobic and flexibility exercises with the right kind of strength training. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.