Skip to main content

Health condition

Newborn skin marks and rashes - what's normal, and what needs a closer look.

Most spots, scales and marks on a new baby's skin are harmless and settle by themselves. Here's how to tell the difference, and when to ask for help.

Jump to treatment
A radiographer guides a patient onto the bed of an advanced 3 Tesla MRI scanner in a London imaging suite

Why trust this guide

  • 01

    Editorial team

    Written by our editorial team from the UK sources listed on each page.

  • 02

    Sourced from guidance

    Checked against NICE, NHS and British Association of Dermatologists sources you can see at the end.

  • 03

    Current for 2026

    Reflects modern UK guidance on benign neonatal rashes, birthmarks and when propranolol is used for haemangiomas.

Key facts

Newborn skin, at a glance.

The essentials, in plain English - what's common, what it looks like, and how it's managed in the UK today.

  • How common

    Very common - most newborns develop at least one benign skin change in the first weeks of life.

  • Erythema toxicum

    Blotchy red patches with a central pale spot, appearing in the first few days - resolves on its own within a week or two.

  • Milia

    Tiny white bumps on the nose and cheeks caused by trapped keratin - clear without treatment by 4 to 6 weeks.

  • Cradle cap

    Greasy yellow scaling on the scalp (infantile seborrhoeic dermatitis) - softens with gentle emollient and brushing.

  • Birthmarks

    Mongolian blue spots and salmon patches are pigment or vascular marks present at birth - almost always harmless.

  • Infantile haemangioma

    A raised red "strawberry" mark that grows for months then slowly fades - most need no treatment, some need propranolol.

Why this guide matters

Reassurance, plus knowing what to watch for.

A new baby's skin changes constantly in the first weeks. The three points below shape everything else on this page.

  • Most newborn skin changes are benign

    Erythema toxicum, milia, salmon patches and Mongolian blue spots are all extremely common and resolve without treatment.

  • A few conditions do need action

    Persistent nappy rash, cradle cap that won't settle, and haemangiomas in sensitive spots benefit from simple, targeted treatment.

  • A small number need urgent review

    Fever, spreading infection, or a mark affecting the eye, airway or spine are the exceptions that warrant prompt medical attention.

How the diagnosis is made

From a worrying rash to a clear answer.

The steps a UK health visitor, GP or paediatrician will normally follow, in order - so you know what to expect and why.

  1. 01

    Assessing

    Full skin examination

    A head-to-toe look at the rash or mark - distribution, colour, texture and whether the baby is otherwise well.

  2. 02

    Assessing

    Birth and feeding history

    Timing of onset, nappy habits, feeding and any family history of eczema or skin conditions.

  3. 03

    Assessing

    Distinguishing benign from concerning

    Checking the pattern fits a known self-limiting condition rather than infection or a vascular malformation.

  4. 04

    Confirming

    Swab or scrape if infection suspected

    Not routine - reserved for pustules with surrounding redness, fever, or lesions that look unusually inflamed.

  5. 05

    Confirming

    Growth tracking for haemangiomas

    Photographs and measurements over the first few months to track the typical proliferative growth phase.

  6. 06

    Preparing

    Specialist referral if atypical

    Unusual size, location (eye, airway, midline spine) or rapid growth prompts a paediatric dermatology or vascular anomaly opinion.

  7. 07

    Preparing

    Health visitor and GP follow-up

    Ongoing reassurance, feeding and skincare advice, and a safety-net for parents on what to watch for.

Typical timeline: reassurance at the first visit, with a plan agreed the same day.

Symptoms

What newborn skin problems actually look like.

The common patterns you'll see in the first weeks - and the features that mean it's time to get checked.

  • Erythema toxicum neonatorum

    Blotchy red macules with a pale or yellow centre, scattered across the trunk and limbs in the first days of life.

  • Milia

    Pinhead-sized white or pearly bumps, mainly on the nose, chin and cheeks - trapped keratin, not acne.

  • Neonatal acne

    Small red or white spots on the face appearing around two to four weeks, linked to maternal hormones.

  • Cradle cap

    Greasy, yellowish, scaly patches on the scalp, sometimes spreading to the eyebrows and behind the ears.

  • Mongolian blue spots

    Flat, blue-grey patches usually over the lower back or buttocks - a pigment mark, not a bruise.

  • Salmon patches (stork marks)

    Faint pink patches on the eyelids, forehead or nape - fade with time, especially on the face.

  • Infantile haemangioma

    A soft, raised, bright red mark that appears in the first weeks and grows before slowly shrinking.

  • Red flag - infection or vascular concern

    Fever, spreading redness, pus, or a mark near the eye or airway needs urgent assessment.

Treatment

How newborn skin problems are managed in the UK.

Reassurance and simple skincare first, with targeted treatment - including propranolol - reserved for the conditions that need it.

  • Reassurance and observation

    The right treatment for most conditions on this page - erythema toxicum, milia and Mongolian blue spots need nothing more.

  • Emollient for dry or scaly skin

    A plain, fragrance-free emollient softens cradle cap scale and soothes dry newborn skin between washes.

  • Softening and brushing for cradle cap

    Gentle massage with baby oil or emollient, left for a few minutes, then a soft brush before washing loosens scale.

  • Barrier cream for nappy rash

    A zinc-based barrier cream at every change, with frequent changes and air time, clears most nappy rash within days.

  • Mild topical steroid, short course

    Reserved for persistent nappy rash or seborrhoeic dermatitis not settling with barrier measures alone - GP guided.

  • Antifungal cream if candida present

    Nappy rash with satellite spots in the skin folds often needs a topical antifungal alongside barrier cream.

  • Propranolol for problem haemangiomas

    Oral propranolol is first-line when a haemangioma threatens vision, breathing, feeding or leaves lasting disfigurement.

  • Specialist referral for atypical lesions

    Paediatric dermatology or vascular anomaly clinics assess anything that does not fit a typical benign pattern.

What this guide is based on

The sources behind every claim on this page.

UK national guidance and specialist society standards, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your health visitor, GP or paediatrician knows your baby and can tell you which parts apply to you. If in doubt, get seen.

  • NICE Clinical Knowledge Summaries. Napkin (nappy) rashes and seborrhoeic dermatitis in infants.

  • British Association of Dermatologists (BAD). Patient information leaflets on infantile haemangiomas and birthmarks.

  • NHS. Birthmarks and newborn skin conditions - patient guidance.

  • Royal College of Paediatrics and Child Health (RCPCH). Guidance on common neonatal skin presentations.

Red flags

When a newborn skin problem needs urgent attention.

Most newborn skin changes are entirely benign. These are the situations that aren't - and where prompt medical review is needed.

  • Fever with a rash

    A newborn with fever and any rash needs same-day medical assessment - infection must be excluded quickly.

  • Pustules with surrounding redness

    Unlike benign erythema toxicum, infected pustules look angry, spread, and the baby may seem unwell.

  • Haemangioma near the eye or airway

    A mark that could affect vision or breathing during its growth phase needs urgent specialist input.

  • Rapidly enlarging or ulcerating mark

    Fast growth, bleeding or ulceration in a haemangioma warrants prompt paediatric dermatology review.

  • Multiple haemangiomas

    Five or more skin haemangiomas can signal internal (liver) involvement and should be screened for.

  • Midline spinal marks

    A birthmark or dimple over the lower spine can occasionally indicate an underlying spinal abnormality.

  • Widespread blistering

    Blistering beyond a few spots is not a typical benign presentation and needs urgent review to exclude infection or a skin fragility disorder.

  • Poor feeding or lethargy

    Any skin finding paired with a baby who feeds poorly or seems unusually sleepy needs prompt medical attention.

  • Nappy rash not responding in a week

    Persistent or worsening nappy rash despite barrier care may need a GP review for infection or dermatitis.

Living with it

Mostly reassurance, with a plan for the exceptions.

Four things that make the biggest difference in the early weeks - knowing what's normal, simple nappy care, tracking any marks, and using the support around you.

A quiet reminder

New skin, new parent - it's normal to worry.

Almost every parent asks about a spot or mark in the first weeks. Asking early costs nothing and settles the mind.

  1. 01 Reassure

    Most of this resolves alone

    Erythema toxicum, milia, neonatal acne and stork marks all settle on their own within weeks - no cream needed.

  2. 02 Protect

    Keep nappy time simple

    Frequent changes, air time and a barrier cream prevent most nappy rash before it starts.

  3. 03 Watch

    Photograph and track marks

    A dated photo each month of any haemangioma or birthmark helps you and your health visitor spot real change.

  4. 04 Support

    Use your health visitor and GP

    They are used to worried new parents - ask early rather than waiting, especially in the first weeks.

Frequently asked

Everything we get asked about newborn skin.

Quick answers on rashes, birthmarks, cradle cap and haemangiomas.

  • Is it normal for a newborn to get a rash in the first few days?

    Yes - erythema toxicum neonatorum affects a large proportion of full-term babies in the first few days of life. It looks like blotchy red patches, sometimes with a pale or yellow centre, and clears on its own within one to two weeks.

  • What are those tiny white bumps on my baby's nose?

    These are almost always milia - small cysts of trapped keratin under the skin. They need no treatment and usually disappear by four to six weeks of age.

  • How do I treat cradle cap?

    Massage a small amount of baby oil or emollient into the scalp, leave it for a few minutes to soften the scale, then gently brush and wash it out. Most cradle cap clears within a few months without medical treatment.

  • Will my baby's strawberry mark go away?

    Most infantile haemangiomas grow for the first three to six months, then slowly shrink over several years, often leaving little or no trace. Only marks that affect sight, breathing, feeding or leave significant scarring usually need treatment with propranolol.

  • Are Mongolian blue spots a sign of bruising?

    No - they are a benign, flat, blue-grey pigmented birthmark, most common over the lower back or buttocks, and are unrelated to injury. It is still worth having them documented in the newborn notes so they are not mistaken for bruising later.

  • When should I get a newborn skin problem checked urgently?

    See a doctor promptly if there is fever, spreading redness, pus, blistering beyond a few spots, poor feeding, or a mark near the eye or airway. Most other newborn skin changes can be discussed at a routine health visitor or GP appointment.

Related content

Keep reading.