Stretch Marks: A Comprehensive Guide
Medically reviewed by Andre Stone | MD, University of Pittsburgh School of Medicine on April 9th, 2026.
Published on April 9th, 2026. Updated on August 23rd, 2026.
Key Takeaways
Stretch marks are common scars that form when skin stretches rapidly, affecting up to 90% of pregnant women
They appear as streaks or lines that start red or purple and fade to white or silver over time
Common causes include pregnancy, rapid weight changes, growth spurts, and certain medical conditions
While not dangerous to your health, stretch marks are permanent but may fade with time and treatment
Stretch marks cannot always be prevented. Avoiding rapid, avoidable weight changes may reduce skin stretching, but hydration and skin-care products have not been shown to reliably prevent stretch marks.
Overview
Stretch marks are a type of scar that forms when your skin stretches or shrinks quickly. This rapid change causes the collagen and elastin in your skin to rupture. As your skin heals, stretch marks may appear as streaks or lines on your body.
These marks are incredibly common and affect people of all ages. They're most well-known for appearing during pregnancy, but they can also develop during puberty, rapid weight gain or loss, and muscle building. While they don't pose any health risks, many people seek treatment for cosmetic reasons.
Stretch marks typically start as raised, red, purple, or pink lines. Over time, they usually fade to a lighter color and may appear slightly depressed below the surrounding skin. They most commonly appear on areas where skin stretches the most, including the belly, breasts, hips, thighs, and upper arms.
You might worry that stretch marks are permanent, but the good news is that they do fade. Most people see their marks become much lighter within one to two years. If you want to speed up the fading process, there are many treatment options available to help.
Symptoms & Signs
Stretch marks have a distinctive appearance that changes over time. Understanding what they look like can help you identify them early when treatment may be most effective.
Primary Symptoms
Red, purple, or pink streaks that appear raised above the skin surface
Lines or bands that run perpendicular to the direction of skin tension
Itching or burning sensation in the affected area before marks appear
Gradual fading to white, silver, or skin-colored depressed lines over months to years
When to Seek Care
While stretch marks themselves don't require medical attention, you should consult a healthcare provider if you develop them without obvious causes like pregnancy or weight changes. This could indicate an underlying condition that affects your hormones or skin health.
The itching feeling you might get before stretch marks show up is called pruritus. This happens because your skin is stretching and changing. Some people feel uncomfortable or self-conscious about their stretch marks, and that's completely normal and understandable.
When to Seek Immediate Care
Stretch marks rarely require emergency care. However, see a doctor if you develop widespread marks suddenly without clear cause, as this may signal a hormonal disorder.
Causes & Risk Factors
Age
Risk Factors
Factors associated with stretch marks include rapid growth during puberty, family history, rapid weight changes, sudden muscle growth, certain medical conditions, and steroid use.
Genetics
Family history of stretch marks makes you more likely to develop them
Lifestyle
Rapid weight changes, yo-yo dieting, and sudden muscle building
Other Conditions
Cushing's syndrome, Marfan syndrome, and steroid use increase risk
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Diagnosis
Diagnosis
Medical History & Physical Examination
Your doctor can usually diagnose stretch marks by looking at your skin. They'll examine the affected areas and ask about when the marks appeared. The doctor will also ask about recent weight changes, pregnancy, medication use, and family history of stretch marks.
During the physical exam, your healthcare provider will look at the color, texture, and pattern of the marks. They may also check for signs of underlying conditions that could cause stretch marks, especially if you developed them without obvious triggers.
The history and examination help your doctor decide whether any additional tests or treatments are needed.
Diagnostic Testing
Visual examination to assess the appearance, location, and pattern of stretch marks
Medical history review to identify potential causes like pregnancy or rapid growth
Blood tests are not usually needed. A healthcare professional may order targeted tests if the history or examination suggests a hormonal disorder or another underlying condition.
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Treatment Options
Treatment for stretch marks focuses on improving their appearance, as they cannot be completely removed. The best results typically come from treating newer, red or purple marks rather than older, white ones.
Conservative Treatments
Topical tretinoin may modestly improve some newer stretch marks. It should be used only with guidance from a healthcare professional and should not be used during pregnancy.
Moisturizers and oils to keep skin hydrated and potentially improve appearance
Silicone gel is used for some raised scars, but its benefit for stretch marks is uncertain.
Advanced Treatments
Laser therapy to stimulate collagen production and reduce the appearance of marks
Microneedling to create controlled injury that promotes skin healing and renewal
Chemical peels to remove outer skin layers and encourage new skin growth
Newer treatments like laser therapy work by heating your skin in a gentle way. This heat tells your body to make new collagen and repair the damaged skin. These treatments often need to be done several times to see good results.
Some people choose to use natural oils and creams at home instead of doctor treatments. Cocoa butter and vitamin E oil are popular choices and may moisturize the skin, but they have not been shown to reliably prevent stretch marks or make them fade faster.
Living with the Condition
Daily Management Strategies
Keep your skin well-moisturized with gentle, fragrance-free lotions or creams. Apply products while your skin is still damp to lock in moisture. Stay hydrated by drinking plenty of water throughout the day. Gentle skin care can reduce dryness or itching, although it may not change how quickly stretch marks fade.
Taking care of your skin every single day makes a real difference over time. You don't need expensive products—simple moisturizers work just fine. Think of it like watering a plant to help it grow healthy and strong.
Many people feel better about their stretch marks once they learn they're just a normal part of life. Millions of people have them, and they don't affect how healthy you are. Accepting your marks can help you feel more comfortable in your own skin.
Exercise & Movement
Regular exercise can help maintain healthy skin elasticity and prevent rapid weight changes that lead to stretch marks. Focus on gradual strength building rather than rapid muscle gain. Low-impact activities like walking, swimming, and yoga are excellent choices that support overall skin health.
Prevention
Maintain a stable weight through balanced nutrition and regular exercise
Drink enough fluid for your individual needs, but extra water has not been shown to prevent stretch marks.
Use moisturizer regularly to keep skin supple and elastic
Avoid rapid weight gain or loss by making gradual lifestyle changes
During pregnancy, gain weight according to your doctor's recommendations
Cocoa butter or vitamin E oil may moisturize the skin, but they have not been shown to reliably prevent stretch marks.
Eat foods rich in vitamins A, C, and E to support skin health
Use steroid medicines exactly as prescribed. If you are concerned about long-term use or develop new stretch marks, talk with the prescribing healthcare professional rather than stopping treatment on your own.
Preventing stretch marks starts with taking care of your body inside and out. Eating healthy foods and exercising regularly help keep your skin strong. Changes that happen slowly give your skin time to adapt without tearing.
If you're going to gain weight, try to do it gradually over months rather than weeks. This gives your skin time to stretch without breaking down. The same idea applies if you're building muscle or going through puberty.
Frequently Asked Questions
Stretch marks are permanent scars that cannot be completely removed. However, various treatments can significantly improve their appearance, especially when marks are newer and still red or purple.
Some creams containing ingredients like retinoids, hyaluronic acid, or centella asiatica may help improve the appearance of stretch marks. However, no over-the-counter cream can eliminate them completely.
Stretch marks themselves are generally harmless. However, sudden or widespread marks without an obvious cause can occasionally be associated with corticosteroid exposure or an underlying medical condition. They're simply scars that form when skin stretches rapidly. Stretch marks do not require emergency treatment.
Yes, men can develop stretch marks, particularly during growth spurts, rapid muscle gain, or substantial weight changes. How common they are varies among populations and risk factors.
Stretch marks typically fade and improve over time rather than getting worse. New marks start red or purple and gradually fade to white or silver over several months to years.
Still have questions?
Consult with a healthcare professional for personalized advice.