Stretch marks in pregnancy: why they happen and what helps
Stretch marks affect up to 8 in 10 pregnant women. They form when skin stretches quickly and the support fibres in its middle layer break. Your genes, skin type and how fast you gain weight matter most. No cream has been proven to prevent them, but moisturising eases itching and gaining weight gradually helps. Most fade from red or purple to silvery lines within a year of birth.
Key facts
| How common | Up to 8 in 10 pregnant women |
|---|---|
| Usually appear | Second half of pregnancy |
| Main factors | Genes, younger age, fast weight gain, big baby or twins |
| Prevention | No cream proven to work |
| Fading | Over 6 to 12 months after birth |
How stretch marks form
They usually appear on the tummy, breasts, hips and thighs. On lighter skin they start pink, red or purple; on darker skin they may look dark brown or lighter than your skin.
Who gets them?
If your mother had them, you're more likely to. They're also more common in younger mothers, with faster weight gain, a large baby, twins, or a lot of fluid around the baby.
Do creams and oils work?
Studies of cocoa butter and olive oil found they don't prevent stretch marks. Some small studies suggest creams with centella or hyaluronic acid may help a little, but the evidence is weak. Moisturising can ease the itch and feels nice. Coconut oil and almond oil are fine to use, but don't expect them to prevent marks.
What helps
- Gain weight gradually. Check your range with the weight gain calculator.
- Eat well and stay active; see exercise in pregnancy.
- Moisturise daily if your skin is itchy.
Treatments after birth
Most marks fade on their own. After pregnancy and breastfeeding, a dermatologist can discuss options such as tretinoin cream, laser or microneedling. Don't use retinoids while pregnant.
When itching is a warning sign
Intense itching, especially of the palms and soles and worse at night, can be a liver condition called obstetric cholestasis. Tell your doctor; it needs a blood test. See warning signs.
Frequently asked questions
Will my stretch marks go away?
Can I use retinol for stretch marks while pregnant?
Do stretch marks hurt?
Sources
- Brennan M et al. Topical preparations for preventing stretch marks in pregnancy. Cochrane Review 2012
- American Academy of Dermatology: Stretch marks
- NHS: Stretch marks in pregnancy
General information, not medical advice. Medical disclaimer · How we review content
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