Cradle cap looks much worse than it is. New parents often see thick yellow-brown crust covering a previously perfect newborn scalp and assume something has gone seriously wrong. It hasn't. Cradle cap is one of the most common, most harmless skin conditions of early infancy, and it almost always resolves on its own in a few months.
This guide explains what's going on, what helps at home, and the small number of cases that warrant a GP visit.
Healthbooq lets you log skin observations alongside everything else — useful for showing a health visitor or GP whether something is changing.
What Cradle Cap Looks Like
The classic appearance:
- Yellow, brown, or off-white scaly patches on the scalp.
- Sometimes greasy, sometimes dry and flaky.
- Thick crusts in some babies, light dandruff-like flakes in others.
- Underlying skin may look slightly pink or red where the scales sit.
- Mostly on the top of the head, but can extend to the eyebrows, behind the ears, and into the creases at the sides of the nose.
- Sometimes spreads to the body — folds of the neck, armpits, nappy area — in which case it's properly called infantile seborrhoeic dermatitis rather than cradle cap specifically.
The thing that distinguishes cradle cap from problematic skin conditions:
- The baby is comfortable. Not scratching, not pulling at the head, not crying because of it.
- No bleeding, weeping, or pus.
- No fever or other illness symptoms.
If your baby has yellow-brown crust on a calm scalp, it's almost certainly cradle cap. If they are scratching at it, the skin is broken or weeping, or the baby is unwell, see the GP.
Why It Happens
Cradle cap is caused by overactive sebaceous (oil) glands on the baby's scalp. The oil glands are stimulated by maternal hormones that crossed the placenta during pregnancy and stay in the baby's circulation for the first few weeks of life. The same hormones that gave you pregnancy-era oily skin are now stimulating your baby's scalp.
The excess oil causes skin cells to clump and stick together rather than shedding normally, producing the visible scales. As the baby's hormone levels gradually fall over the first months, the oil production normalises and cradle cap resolves on its own.
What it is not:
- Not poor hygiene. Babies with cradle cap aren't dirty; the issue is biological.
- Not an allergy. No connection to milk, formula, or the mother's diet.
- Not infectious or contagious.
- Not dangerous.
- Not the same as eczema (more on that below).
How to Treat It at Home
Treatment is optional — cradle cap clears on its own. But most parents prefer to manage it for cosmetic reasons.
The standard approach:
- Apply oil to the affected area. Baby oil, olive oil, or coconut oil all work. A small amount, gently rubbed into the patches.
- Leave it on for 15–30 minutes for thin scales, or overnight for thick crusts. Cap with a soft hat or muslin if you're worried about oil getting on bedding.
- Gently brush with a soft-bristled baby brush or your fingertips. The scales should lift away. Don't force any that are stuck — they'll come off next time.
- Wash thoroughly with a mild baby shampoo to remove both the loosened scales and the oil.
- Repeat 2–3 times a week during the active phase.
Once the scales have cleared significantly, return to normal bathing frequency.
A few specifics:
- Don't pick at scales when dry. They can take broken skin with them, creating a small wound that risks infection.
- Don't scrub. Even with a brush, gentle is the rule — the baby's scalp is thin and easily irritated.
- Don't leave oil on for days at a time. Long oil contact can be slightly irritating to the underlying skin.
- Don't use adult dandruff shampoo unless specifically advised. Most contain ingredients (salicylic acid, coal tar, ketoconazole) that aren't licensed for infant use.
Some parents prefer dedicated cradle cap products — Mustela Foam Shampoo, Dentinox cradle cap shampoo (containing low-strength sodium dodecyl sulfate), or Bepanthen Cradle Cap. These work but aren't essential. Plain oil and a mild baby shampoo do the same job for less money.
When It's Worth a GP Visit
Most cradle cap doesn't need medical input. See the GP or health visitor if:
- It's spreading widely beyond the scalp — to the face, neck folds, armpits, body, or nappy area in significant areas.
- The skin looks inflamed, red, or weepy under the scales.
- The baby seems uncomfortable, scratching, or distressed by it.
- There's a yellow crust with weeping or a pus-like discharge — possible bacterial infection.
- It's not improving after 4–6 weeks of consistent home treatment.
- You're not sure whether it's cradle cap or eczema — the two can sometimes look similar.
For widespread or persistent cases, the GP may prescribe:
- A mild antifungal shampoo (ketoconazole 2% in older babies) — addresses the role of the Malassezia yeast that lives on everyone's skin and may contribute.
- A low-potency topical steroid cream (1% hydrocortisone) for short-term use on inflamed areas.
- An antibiotic if the skin is infected.
These are rarely needed for typical scalp-confined cradle cap.
Cradle Cap vs. Eczema
The two conditions can look similar but have different causes and treatments. Useful distinctions:
| | Cradle cap | Eczema |
|—|—|—|
| Texture | Greasy, yellow-brown scales | Dry, flaky, sometimes weeping |
| Underlying skin | Mostly normal pink, slight redness | Red, inflamed, sometimes thickened |
| Itch | None — baby comfortable | Yes — baby scratches, pulls, fusses |
| Distribution | Scalp, eyebrows, behind ears, nose creases | Cheeks, body, knees, elbows; often spares scalp |
| Onset | First weeks of life | Often after 2–3 months |
| Family history of allergy | No association | Often positive |
| Response to oil and washing | Improves | Doesn't improve much |
If the picture is mixed, see the GP. Eczema benefits from regular moisturiser (emollient) and sometimes a low-potency steroid cream; cradle cap doesn't need these.
How Long It Lasts
Cradle cap usually resolves between 8 weeks and 12 months of age, with most cases gone by 6 months. A small number of children continue to have mild scalp scaling beyond infancy, particularly those with a tendency to seborrhoeic dermatitis (which can persist into adulthood as the dandruff that responds to ketoconazole shampoos).
Recurrence in the first year is common — cradle cap often improves and then comes back as the seasons or hormonal levels shift. Same treatment, same patient timeline.
Things That Make No Difference
- Maternal diet during pregnancy or breastfeeding.
- Baby's diet — formula brand, breastfeeding vs. formula, weaning foods.
- Bathing frequency — frequent bathing doesn't cause it; infrequent bathing doesn't cause it.
- Type of shampoo beyond mild vs. harsh.
The condition runs on baby physiology and time. Most of what you do is to make it look better while it sorts itself out.
Key Takeaways
Cradle cap is the harmless yellow-brown crusty patches that appear on a baby's scalp in the first weeks. It looks worse than it is — the baby isn't itchy, it isn't sore, and it almost always clears on its own within months. The cause is overactive oil glands stimulated by leftover maternal hormones, not poor hygiene. Best home treatment: oil the patches for 15–30 minutes (or overnight), gently loosen with a soft brush, then wash with mild baby shampoo. See a GP if it spreads widely to face and body, looks inflamed, or doesn't improve over several weeks.
