Around 8 out of 10 pregnant women in the UK notice stretch marks during pregnancy, according to the NHS guidance on pregnancy stretch marks. That makes them a normal part of pregnancy for most expectant mothers, not evidence that you've neglected your skin or chosen the wrong cream.
You may notice new lines on your bump, breasts, hips or thighs and feel surprised by how quickly they appear. You may also feel proud, self-conscious, or a mixture of both. All of those reactions are valid. The useful starting point is honest information: skincare can soothe, moisturise and create a comforting daily ritual, but no product can promise that stretch marks won't develop.
Table of Contents
- Why Stretch Marks During Pregnancy Are So Common
- The Science Behind Stretch Marks and Changing Skin
- Risk Factors and When Stretch Marks Typically Appear
- What the Evidence Really Says About Prevention
- Building a Pregnancy-Safe Skincare Ritual
- Postpartum Treatment Options and Realistic Expectations
- Embracing Your Changing Body and Celebrating Your Bump
Why Stretch Marks During Pregnancy Are So Common
A first pregnancy can make every physical change feel like a question. One day your bump looks smooth, and later you notice pink, red or purplish lines around your navel. You might wonder whether you've gained weight too quickly, whether your skin is unusually fragile, or whether you should have started using an oil sooner.
The answer is usually much kinder than self-blame. Stretch marks, medically known as striae gravidarum, are a common response to the skin changing during pregnancy. The NHS describes them as harmless and notes that they often fade over time. They're a skin change, not a sign that something is wrong with your pregnancy.
The reassuring fact: Stretch marks aren't a measure of how well you've cared for your body.
UK clinical evidence also shows why this concern is so widespread. In one peer-reviewed survey, 46.7% of women developed stretch marks during their current pregnancy, while 28.6% developed them both before and during that pregnancy. The figures are reported in the PubMed Central study on pregnancy stretch marks, and the same paper records similar rates among women in their first pregnancy and those who had been pregnant before.
That variation matters. Some women develop many marks, some develop only a few, and some don't notice any. Different studies report different rates, which can reflect the people studied and how stretch marks were identified. The wider review literature cited by the British Journal of Dermatology says they can affect up to 90% of women, reinforcing that they're among the most familiar skin changes associated with pregnancy.
What stretch marks may look like
Early marks can look pink, red, brown or purple, depending on your natural skin tone. They may feel slightly itchy or tender while the skin is stretching, although many people don't feel anything at all. Over time, the colour often softens and the lines become paler.
You don't need to diagnose them yourself. If a rash is intensely itchy, spreads beyond areas where skin is stretching, or worries you, speak with your midwife, GP or maternity team. Ordinary stretch marks are harmless, but not every pregnancy rash is a stretch mark.
For a broader explanation of how pregnancy can affect texture and appearance, you can explore this guide to skin texture changes. The most important message remains simple: stretch marks are common, expected and not a personal failure.
The Science Behind Stretch Marks and Changing Skin
Think of skin like a piece of woven fabric with a flexible inner structure. The outer surface may look intact, but underneath it contains connective tissue that helps the skin stretch and return to shape. During pregnancy, the abdomen expands, the breasts change, and other areas may alter in size. That movement places tension on the deeper layer of skin.
Stretch marks form in the dermis, the layer beneath the epidermis. The dermis contains collagen and elastin fibres. Collagen provides strength, while elastin helps skin recoil. When the dermis is exposed to rapid or sustained stretching, its structure can change and leave lines that look slightly different from the surrounding skin.
Why pregnancy can make the change more visible
Pregnancy involves more than a growing bump. Hormonal changes affect many body systems, including the skin. At the same time, expanding tissue creates mechanical tension across the abdomen, breasts, hips and thighs. These influences overlap, so a person may develop stretch marks even when they moisturise regularly and take excellent care of themselves.
The marks often begin as striae rubra, meaning newer lines that appear pink, red or purplish. Their colour reflects changes in the deeper tissue and small blood vessels beneath the skin. As they mature, they can become striae alba, paler, silvery or white lines that may remain slightly indented or textured.
The transition doesn't happen overnight, and it won't look identical for everyone. Skin tone, genetics, the location of the marks and the time since pregnancy all affect how they appear. A mark that looks prominent shortly after it forms may become much less noticeable later.
Where they tend to appear
The abdomen is the area commonly associated with pregnancy stretch marks, but it isn't the only location. You may notice them on:
- Breasts: Breast growth can stretch the skin before or after birth, particularly as the breasts change during pregnancy and feeding.
- Hips and thighs: These areas can change alongside the abdomen and may develop lines even if your bump has few.
- Lower back and buttocks: Stretching and changes in body shape can affect these areas too.
Moisturiser works mainly at the surface of the skin. It can make dry or tight skin feel more comfortable, but that's different from physically preventing changes in the deeper dermis. For accessible background on collagen, see this overview of collagen production and skin support.
A short visual explanation can also help you understand the layers involved:
Understanding the anatomy helps you judge skincare claims more fairly. A cream may support the outer barrier and improve comfort, but it can't guarantee that the dermis will remain unchanged while your body grows.
Risk Factors and When Stretch Marks Typically Appear
Stretch marks don't follow a single timetable. One pregnant woman may notice them early, while another may see them later or not at all. NHS Wales guidance says that, for people who develop stretch marks, they often become noticeable around 22 to 24 weeks of pregnancy, which makes the second trimester a useful time to pay closer attention to changing skin. You can read that timing in the NHS Wales pregnancy guidance.
Risk factors can help you understand your context, but they can't predict your outcome with certainty. Family history may matter, and your skin may respond differently in one pregnancy from another. Age, patterns of body change, carrying more than one baby and previous pregnancies can also influence how much tension your skin experiences.
Stretch mark risk factors at a glance
| Risk Factor | Influence Level | What You Can Control |
|---|---|---|
| Family history | Often influential | You can't change genetics, but you can plan a gentle comfort routine |
| Rapid changes in body size | Can be influential | Follow your maternity team's guidance and avoid restrictive dieting |
| Previous pregnancy | May affect risk | Support your skin without assuming the same pattern will repeat |
| Multiple pregnancy | May increase stretching | Discuss comfort, itching and skin changes at routine appointments |
| Age and individual skin characteristics | Varies between people | Focus on soothing, moisturising care rather than prediction |
| Timing of visible changes | Often around the second trimester for those affected | Start a sustainable routine before skin feels tight or itchy |
This table is a guide, not a scoring system. Having several factors doesn't mean you'll definitely develop marks, and having none doesn't guarantee smooth skin. Genetics and individual biology remain outside your control.
Use timing to prepare, not to worry
If you're approaching the second trimester, you can begin a simple routine that keeps your skin comfortable. That doesn't mean you're racing against a deadline. It means you're giving yourself a practical habit before tiredness, a larger bump and other pregnancy demands make new routines harder to maintain.
Avoid trying to control normal pregnancy weight changes through dieting. Your midwife or obstetric team can advise you about healthy pregnancy wellbeing, nutrition and any concerns about changes in your body. Skincare should sit alongside that support, not replace it.
The most useful question isn't, “How do I guarantee I won't get marks?” It's, “How can I help my skin feel calm, supple and cared for as it changes?”
What the Evidence Really Says About Prevention
Creams and oils are often marketed as if they can create an invisible shield around the bump. That promise is understandable. Pregnancy can bring uncertainty, and a product that offers control may feel reassuring. The clinical evidence, however, doesn't support a guarantee of prevention.
A Cochrane review of six trials involving 800 women found no high-quality evidence that topical preparations prevent stretch marks during pregnancy. The review's pooled estimate found no statistically significant difference in new stretch marks compared with placebo or no treatment, with an average risk ratio of 0.74 and a 95% confidence interval from 0.53 to 1.03, based on five trials involving 474 women. The review also found no significant difference in severity, with a standardised mean difference of -0.31 and a 95% confidence interval from -1.06 to 0.44, based on two trials involving 255 women. These findings are detailed in the Cochrane review of topical preparations.
Prevention isn't the same as skin support
“No proven prevention” doesn't mean “no reason to moisturise”. It means the benefit needs to be described accurately.
A topical product can help reduce the feeling of dryness, tightness and surface discomfort. Massaging a moisturiser or oil can also turn application into a calming pause in a busy day. Those benefits are worthwhile even if stretch marks still appear.
A realistic promise: Choose skincare to support comfort and hydration, not to control an outcome determined partly by biology.
The British Journal of Dermatology review cited in UK-aligned evidence found that research on topical prevention remains limited. It identified weak signals for centella and possibly bitter almond oil massage, alongside weak evidence for hyaluronic acid. “Weak evidence” doesn't mean these ingredients are proven solutions. It means the findings aren't strong enough to justify definitive claims.
How to read product claims
Be cautious when packaging says a cream will prevent, eliminate or guarantee protection from stretch marks. Look for more measured language about moisturisation, softness, barrier support and comfort. A responsible brand should make clear what its product is designed to do and what the research cannot establish.
You can use this guide to whether stretch-mark oil works to think through claims more critically. The right product is one you tolerate well, enjoy applying and can use consistently, provided its ingredients are appropriate for your pregnancy and personal health needs.
Building a Pregnancy-Safe Skincare Ritual
A useful pregnancy skincare routine doesn't need to be complicated. The aim is to cleanse gently, replenish surface moisture and avoid irritation. You can begin early in pregnancy or before your bump becomes prominent, but there's no need to panic if you're starting later.
Start with a gentle cleanse
Use warm rather than very hot water, and choose a mild, fragrance-free or low-fragrance cleanser if your skin is sensitive. Avoid scrubbing vigorously, especially if your bump feels tight or itchy. Pat your skin dry instead of rubbing it, leaving a little moisture on the surface before applying an emollient.
Apply hydration while skin is still damp
A body cream, balm or oil can help reduce surface dryness and leave skin feeling more comfortable. Ingredients such as shea butter, natural plant oils and hyaluronic acid are commonly used for hydration, but “natural” doesn't automatically mean suitable for everyone. Check the complete ingredient list, particularly if you have eczema, allergies or a history of reacting to fragrance.
The abdomen, breasts, hips, thighs and lower back are sensible areas to include. Apply enough product to glide comfortably, then use slow circular movements rather than pressing hard or pinching the skin. Massage should feel soothing, never painful.
Keep the ritual sustainable
A routine that takes place after your bath or shower may be easier to remember. You could keep the product beside your towel, ask your partner to help massage areas that become difficult to reach, or use the time to check in with how your skin feels.
- For tightness: Apply a richer moisturiser and avoid harsh shower products.
- For itching: Moisturise regularly, wear comfortable fabrics and mention persistent itching to your midwife or GP.
- For sensitive skin: Patch test a new product on a small area and stop if you develop burning, swelling or a rash.
- For sun exposure: Cover changing skin and use sun protection suitable for pregnancy, following advice from your healthcare professional.
Be careful with active ingredients marketed for scar treatment. Retinoids should be avoided during pregnancy, and breastfeeding can affect whether certain post-pregnancy treatments are appropriate. If you're unsure about a product, ask your midwife, GP, pharmacist or dermatologist rather than relying on a marketing label.
The Happy Bump Co's Belly Oil for Stretch Marks 200ml is one option designed to nourish areas such as the belly and breasts during pregnancy. Use any product for its stated moisturising purpose, not as a promise that stretch marks can't form.
Postpartum Treatment Options and Realistic Expectations
After birth, stretch marks usually continue to change. Fresh red or purple lines can gradually become paler, and their contrast with surrounding skin may soften. The process is individual, so it's better to judge changes over time than to expect a rapid transformation.
Treatment is optional. Some new mums feel more comfortable leaving their marks alone, while others want to explore ways to reduce their visibility. Neither response needs defending.
Start with time and moisturisation
Over-the-counter creams and oils can keep the skin comfortable and reduce dryness, but they shouldn't be presented as a way to erase mature marks. Continued moisturisation may make the surface feel smoother, even when the deeper texture remains.
Professional options may include laser-based procedures and microneedling. These treatments aim to alter colour or texture, and they generally require assessment by a qualified clinician. Results can vary according to whether marks are newer or older, their colour, your skin type and the treatment chosen.
Get individual advice before active treatment
Prescription retinoids may be considered for some mature stretch marks, but they aren't suitable during pregnancy. Breastfeeding also deserves a specific discussion with a GP or dermatologist before using prescription or intensive topical treatments.
Ask a dermatologist about:
- Timing: Whether your marks have matured enough for the proposed treatment.
- Suitability: How your skin tone, sensitivity and medical history affect risk.
- Expected change: Whether the aim is to soften colour, improve texture or both.
- Aftercare: How to protect treated skin and manage irritation.
- Alternatives: Whether waiting and using simple moisturisation may suit you better.
Be wary of clinics that promise complete removal. Even professional treatment may improve the appearance rather than make marks disappear. A consultation should leave you with realistic options, not pressure to buy a course.
Embracing Your Changing Body and Celebrating Your Bump
Stretch marks can bring complicated feelings, and acceptance doesn't have to mean loving every change immediately. You can care for your skin, feel uncertain about it and still recognise what your body is doing. These marks are harmless, common and part of a body adapting to pregnancy.
Let your routine be a moment of connection rather than correction. Moisturise because your skin deserves comfort, not because it has failed a test. Your bump doesn't need to be flawless to be worthy of care and celebration.
The Happy Bump Co offers bump-focused care, including Belly Butter, Belly Oil for Stretch Marks and Pregnancy Tummy Scrub, designed to nourish changing skin through a gentle self-care routine. Explore the range and choose the product that fits your pregnancy skincare needs at The Happy Bump Co .