Cradle Cap: Causes, Gentle Treatment and When It Goes Away

Cradle cap is a common, harmless rash of greasy yellow or white scales on a baby’s scalp that usually needs only gentle washing and soft brushing, and typically clears by the first birthday.

Crusty, flaky patches on your baby’s head are one of the most common skin conditions of early infancy. Cradle cap is the infant form of seborrheic dermatitis, it is not contagious, and it is not a sign that you have done anything wrong.

This guide covers what is and is not known about the cause, what it looks like on different skin tones, gentle care step by step, what to avoid, cradle cap vs eczema, how long it lasts and when to call.

What Is Cradle Cap?

Cleveland Clinic describes cradle cap as infantile seborrheic dermatitis limited to the scalp. When the same rash appears elsewhere (eyebrows, behind the ears, skin folds, diaper area), the AAP notes it is simply called seborrheic dermatitis.

The AAP says about 70% of three-month-olds have it. It looks worse than it feels: the NHS says it is not itchy or painful and does not bother the baby.

• Not contagious: Cleveland Clinic says babies with it can go to daycare and playdates.
• Not a hygiene problem: the AAP and MedlinePlus both say it is not caused by poor hygiene.
• Not an allergy or infection: per the AAP, though picking at it can lead to infection.

What Causes Cradle Cap? What Is and Is Not Known

The honest answer is that nobody knows for sure. The AAP, the NHS and MedlinePlus all say the exact cause is unknown or unclear. What the major sources describe are likely contributors:

• Extra oil from the scalp’s oil glands: MedlinePlus says providers think the oil glands in a baby’s scalp produce too much oil. The AAP and Cleveland Clinic both mention that hormones passed from the mother before birth may push those glands to overproduce.
• A common skin yeast: the AAP lists a reaction to a common skin yeast as one proposed explanation, and Cleveland Clinic names the yeast Malassezia as a likely factor.

Cleveland Clinic is direct that cradle cap is not caused by anything parents did, and the NHS says it cannot be caught from other babies.

What Cradle Cap Looks Like (Including on Darker Skin)

• Scales: the AAP describes thick, yellowish scales. MedlinePlus describes thick, crusty yellow or brown scales, and the NHS describes yellow or white greasy scales that form a crust and may flake off.
• Skin underneath: the NHS says it may look pink or red on white skin, and lighter or darker than the surrounding skin on brown or Black skin. The American Academy of Dermatology (AAD) notes seborrheic dermatitis can look red on lighter skin and like patches of darker skin on darker skin.

On brown and Black skin, redness can be hard to see, so go by the greasy scale and any change in color compared with nearby skin. Cleveland Clinic says the diagnosis is usually made by looking at the scalp, with no lab tests or biopsies needed.

A little hair may come away with the scales. The AAP and the NHS both say the hair grows back. If you are tracking head growth or the soft spot at checkups, our guide to baby head circumference explains what your pediatrician measures.

Cradle Cap Treatment: Gentle At-Home Care, Step by Step

First, the reassuring part: treatment is optional. The AAP says, “You don’t need to treat cradle cap,” and the AAD says treatment is not necessary. If you want to loosen the scales, this routine combines what the AAP, AAD, NHS, Cleveland Clinic and MedlinePlus recommend:

• 1. Soften stubborn scales first: rub a little emollient into thick patches before washing. The AAP lists mineral oil, coconut oil or petroleum jelly left on overnight; Cleveland Clinic lists mineral oil, petroleum jelly or baby oil; the AAD suggests a non-food oil, such as baby oil.
• 2. Wash with a mild baby shampoo: the AAP and AAD both say shampooing about every other day helps loosen scale. The AAD recommends fragrance-free. MedlinePlus suggests daily washing while scales are present, then twice a week once they clear, rinsing thoroughly.
• 3. Brush gently: use a soft baby brush, baby comb or your fingertips to lift loose scales (AAP, AAD, NHS). Do not force off scales that are still stuck.
• 4. Repeat and be patient: thick patches can take several sessions. Wash the brush regularly (MedlinePlus). Stop and call your pediatrician if the skin looks raw, red, swollen or starts to ooze.

For very stubborn scales, MedlinePlus describes one more option: apply mineral oil and wrap warm, wet cloths around the head for up to an hour before shampooing. MedlinePlus cautions that babies lose heat through the scalp, so check that the cloths stay warm.

If you are new to bath time, our step-by-step guide on how to bathe a newborn covers the basics.

What NOT to Do for Cradle Cap

• Do not pick or scratch the scales: the AAP, AAD, NHS and Cleveland Clinic all warn that picking can irritate the skin, leave it raw and raise the risk of infection.
• Skip olive oil: the NHS and Cleveland Clinic both say olive oil may not be suitable for a baby’s skin, even though it is a common home remedy.
• Avoid peanut oil: the NHS and Cleveland Clinic list peanut oil as one to avoid because of allergy risk. The AAD goes further and advises against food-based oils in general.
• No adult dandruff shampoos without your pediatrician’s OK: the AAD says dandruff shampoo is not recommended for children, and Cleveland Clinic says adult or anti-dandruff shampoos are not recommended. The AAP says to check with your pediatrician before any medicated shampoo, which may irritate the skin.
• Skip soap and fragranced products: on affected skin (NHS).
• Do not start creams on your own: the AAP notes a pediatrician may prescribe an antifungal or hydrocortisone cream. That is a medical decision, not a home step.

A note on coconut oil: the sources do not fully agree. The AAP and the NHS list it as an option, while the AAD advises against food-based oils. If eczema or food allergies run in the family, ask your pediatrician. Mineral oil and petroleum jelly, both on the AAP list, avoid the question.

Cradle Cap vs Eczema vs Dandruff

Cradle cap is often confused with baby eczema (atopic dermatitis). Use this table to decide what to ask your pediatrician, not to diagnose.

What about dandruff? Cleveland Clinic explains that dandruff is the adult scalp form of seborrheic dermatitis, and cradle cap is the infant scalp version, so “baby dandruff” is not far off. The treatments are not interchangeable, though: the AAD says dandruff shampoo is not recommended for children.

Two clues separate cradle cap from eczema. Itch: cradle cap usually does not bother a baby, while eczema often makes babies scratch or rub their skin against things, according to the AAD. The diaper area: seborrheic dermatitis can appear there, but the AAD says baby eczema typically does not. Cleveland Clinic notes a doctor may need to rule out eczema or scabies.

Pimple-like spots on the cheeks may be baby acne. Red, irritated skin around the mouth and chin may be drool rash, and tiny red bumps in warm, covered areas may be heat rash.

Cradle Cap on Eyebrows, Behind the Ears and in the Diaper Area

The AAP lists the face, neck folds, behind the ears, the armpits and the diaper area. Cleveland Clinic adds the forehead, eyebrows and arm folds, and MedlinePlus mentions the eyelids and the skin around the nose. A rash outside the scalp is worth showing your pediatrician (AAP, Cleveland Clinic).

• Eyebrows and face: use the same gentle approach: a soft, damp cloth and a little emollient. Keep oil and shampoo out of your baby’s eyes, and do not pick flakes off the eyelids.
• Behind the ears and in skin folds: the NHS suggests bathing your baby regularly in water with an emollient instead of soap when scales appear outside the scalp.
• Diaper area: the NHS advises changing wet or dirty diapers promptly and using a barrier cream if the diaper area is affected. Refresher: how to change a diaper.

A diaper rash has several possible causes. If it is bright red, has spots around the edges or is not improving with barrier cream, read diaper rash vs yeast infection and check with your pediatrician.

Is Cradle Cap Itchy or Painful?

Usually not. The AAP says cradle cap is rarely itchy or uncomfortable, the NHS says it is not itchy or painful, and Cleveland Clinic describes the scales as usually painless and itch-free.

That makes itch a useful signal. MedlinePlus lists a child who seems uncomfortable or constantly scratches the scalp as a reason to contact a provider, and the AAD lists pain or disruptive itching as a reason to see a dermatologist. Itch may point to eczema or another condition.

When Does Cradle Cap Go Away?

For most babies, cradle cap fades in the first year without treatment. Sources give slightly different ranges:

Scales can return after you clear them. The AAP suggests continuing frequent washing with a mild baby shampoo to prevent buildup.

See a doctor if it persists beyond a few months (Cleveland Clinic) or does not improve after a few weeks of treatment (NHS). For context on how long this early stage lasts in general, see how long the newborn stage lasts.

Related Betteroo Guides

• How to Bathe a Newborn
• Baby Acne
• Drool Rash
• Baby Heat Rash
• Diaper Rash Vs Yeast Infection
• Baby Soft Spot

When to Call Your Pediatrician

Cradle cap is harmless, but picked or scratched skin can become infected, and other conditions can look similar. Call your pediatrician’s office if:

• The patches are crusted, weepy or have pus bumps: the AAP lists these as reasons to see the pediatrician.
• Fluid or blood leaks from the scales: (AAP, NHS, Cleveland Clinic). The NHS says bleeding, leaking fluid or swelling may mean an infection or another condition, such as eczema or scabies.
• The skin looks swollen, very red, feels hot or smells bad: (AAP, AAD, NHS, Cleveland Clinic).
• It spreads beyond the scalp: especially if the rash is severe or covers much of the body (AAP, AAD, NHS).
• Your baby seems itchy, in pain or uncomfortable: or constantly scratches the scalp (AAP, AAD, MedlinePlus).
• It is not improving: after a few weeks of home care (NHS), or it persists beyond a few months (Cleveland Clinic).
• You notice hair loss: beyond strands lifting with the scales (AAD).

Call right away if your baby has a fever along with the rash. MedlinePlus says a fever may signal a worsening infection, and the AAP says any temperature of 100.4 F (38.0 C) or higher in a baby under 3 months old is a reason to call the pediatrician right away. Also call right away if your baby looks very ill, is unusually drowsy or is very fussy (AAP).

Call 911 or go to the nearest emergency room if your baby is having trouble breathing, is very hard to wake or seems seriously unwell and you cannot reach your pediatrician quickly.

Your pediatrician can confirm whether it is cradle cap and, if needed, prescribe a medicated shampoo or cream suited to your baby’s age. A mild rash can wait for a routine checkup; see our 2-month-old milestones guide for what else those visits cover. This article is general education, not medical advice.

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