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pediatric-skin

Cradle Cap in Babies: Flaky Scalp Explained

Cradle cap causes greasy, scaly patches on a baby's scalp. It is harmless, very common, and usually clears on its own with simple home care.

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Lena Park, PNP — Pediatric NP

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What cradle cap is — and isn't

Cradle cap is a form of seborrheic dermatitis, a common inflammatory skin condition that affects areas rich in sebaceous (oil-producing) glands. In infants, it appears as thick, greasy, yellowish or white scaly patches on the scalp. It may also involve the eyebrows, the crease behind the ears, the sides of the nose, and occasionally other skin folds 1.

It is not contagious and does not indicate a dirty scalp or poor diet. Cradle cap is not caused by an allergic reaction or infection 1. The underlying cause is thought to involve residual maternal hormones stimulating oil gland activity, combined with the natural presence of a type of yeast on the skin — though the exact mechanism is not fully established 2.

Gentle home care for the scalp

For most cases, gentle daily care is enough to keep cradle cap manageable. Washing the baby's hair with a mild baby shampoo and using a soft brush or clean cloth to loosen the scales can help 1. Some caregivers find that massaging a small amount of mineral oil, coconut oil, or petroleum jelly into the scalp about 15–20 minutes before shampooing helps soften the scales, making them easier to lift gently 1.

It is important not to pick or forcibly remove scales — doing so can irritate the skin and occasionally allow bacteria to enter. After applying oil, shampoo thoroughly to remove residue, as leaving oil on the scalp can worsen flaking over time. A review of infantile seborrheic dermatitis in the AAP journal Pediatrics in Review confirms these steps as the standard first approach 2.

When cradle cap spreads beyond the scalp

Seborrheic dermatitis in infants can appear on the face — commonly on the forehead, eyebrows, and around the nose and ears. In skin folds such as the neck, armpits, and diaper area, it may look reddish and inflamed rather than flaky. This is still generally the same benign condition, but patches in skin folds that are red, weeping, or not responding to gentle cleaning may benefit from a provider assessment, as they can be difficult to distinguish from other skin conditions without examination 1.

A provider may recommend a mild antifungal cream or low-potency hydrocortisone cream for persistent or inflamed areas if gentle home care is insufficient 1.

What to expect over time

Cradle cap typically improves naturally as oil gland activity decreases in the first year of life. Most cases resolve by six to twelve months on their own, though some infants have mild seborrheic dermatitis that persists a bit longer. It can occasionally recur in toddlers 2.

If cradle cap is very thick, covers a large area, does not improve with gentle home care after several weeks, or the skin beneath appears red and irritated, a provider visit is worthwhile. Adult anti-dandruff shampoos containing selenium sulfide or tar are not recommended for infants without a provider's guidance, as the ingredients can be too strong for infant skin 1.

Common questions

Does cradle cap mean my baby has sensitive skin or allergies?

No — cradle cap is not caused by an allergy and does not necessarily mean the baby has sensitive skin. It is a response to oil gland activity and yeast that is common in all babies in the first months of life.

Can I use dandruff shampoo on my baby?

Adult dandruff shampoos are not typically recommended for infants without guidance from a provider. Ingredients like selenium sulfide or tar can be too strong for infant skin. A provider can suggest an appropriate medicated shampoo if gentle baby shampoo is not sufficient.

Is it okay to brush the scales off?

A soft baby brush used gently on a freshly shampooed scalp can help lift loose scales. Picking at scales or using a firm brush is not recommended, as it can irritate the skin or cause small breaks that invite infection.

My baby has cradle cap and the skin underneath looks red — should I be concerned?

Some redness under the scales is part of seborrheic dermatitis. If the redness is bright, spreading, weeping, or the baby seems bothered by the area, a provider visit can help rule out a secondary infection or a different skin condition.

Talk to a clinician

Lena Park, PNP — Pediatric NP

kids & families. Gale can match you with a licensed clinician for a visit.

Find care →

When to get care right away

  • —The scalp or skin under the scales becomes very red, warm, or appears infected (oozing, crusting that looks like impetigo)
  • —Cradle cap spreads rapidly to cover the face, trunk, or limbs with a red rash
  • —Baby seems uncomfortable, is scratching, or the affected skin appears to cause distress
  • —No improvement after several weeks of gentle home care

This article provides general health information for parents and is not a diagnosis or personalized medical advice. Consult your child's provider with specific concerns.

References

  1. 1.American Academy of Pediatrics (2024). What is Cradle Cap?. HealthyChildren.org. link ✓Cradle cap affects ~70% of three-month-olds; not caused by allergy or infection; gentle oil and shampoo technique for home management; when to call provider
  2. 2.American Academy of Pediatrics (2019). Seborrhea. Pediatrics in Review (AAP). link ✓Clinical review of infantile seborrheic dermatitis: pathophysiology, distribution including scalp/face/folds, home care steps, and potential recurrence in toddlers

2 sources, numbered by first appearance. General health information, not medical advice — synthetic demonstration content.