Cradle Cap
Greasy, scaly patches on a baby's scalp
Quick Facts
- Type: Infant skin condition
- Most affected: Babies in the first few months
- Key feature: Greasy, yellow, scaly scalp patches
- Outlook: Harmless and usually clears on its own
Overview
Cradle cap is a very common and harmless skin condition that affects babies, usually in the first few weeks to months of life. It causes greasy, scaly, crusty patches on the scalp, and is a form of seborrheic dermatitis. Despite its appearance, cradle cap does not bother most babies, is not itchy or painful for them, and is not caused by poor hygiene or an infection.
The condition typically appears on the scalp but can also affect the eyebrows, the area behind the ears, the eyelids, and the skin folds. Cradle cap almost always clears up on its own within weeks to a few months, often without any treatment. Gentle home care can help loosen and remove the scales while the condition resolves.
Symptoms
Cradle cap is recognized by its characteristic patches, which are usually most noticeable on the top of the head.
- Greasy or dry scaly patches on the scalp
- Yellow or brownish crusts that may flake off
- Skin that may look mildly red underneath the scales
- Patches that can also appear on the eyebrows, eyelids, behind the ears, and in skin folds
- Occasional mild hair loss in the affected area, which grows back
Cradle cap is generally not itchy and does not seem to cause discomfort. If the skin becomes very red, swollen, weepy, or spreads widely, this may suggest irritation or infection that needs review.
Causes
The exact cause of cradle cap is not fully understood, but a few factors are thought to contribute.
- Overactive oil glands: the baby's oil-producing (sebaceous) glands may be stimulated by hormones passed from the mother before birth, producing excess oil that traps skin cells.
- A common skin yeast: a yeast called Malassezia that normally lives on the skin may play a role in the inflammation.
Cradle cap is not caused by poor hygiene, allergies, or infection, and it is not contagious. Parents have not done anything wrong, and it cannot be passed to other people.
Risk Factors
- Young infant age, especially the first three months
- A family history of seborrheic dermatitis or related skin conditions
- It is very common and affects many otherwise healthy babies
Diagnosis
Cradle cap is diagnosed simply by looking at the baby's skin; no tests are usually needed.
- Visual examination: a doctor or nurse can recognize the typical greasy, scaly scalp patches at a glance.
- Review of distribution: checking other commonly affected areas such as the eyebrows, behind the ears, and skin folds.
Testing is only considered if the rash is unusual, very widespread, or does not respond to simple care, to rule out other skin conditions such as eczema or a fungal infection.
Treatment
Cradle cap usually clears on its own and often needs no treatment. Gentle home care can help loosen and remove the scales.
- Gentle washing: wash the baby's scalp regularly with a mild baby shampoo and softly loosen scales with a soft brush or cloth.
- Softening the scales: applying a small amount of baby oil or plain emollient before washing can soften crusts so they lift off more easily.
- Avoid picking: do not scratch or forcefully pick at the scales, which can irritate the skin or cause infection.
- Medicated options: for stubborn or more widespread cases, a doctor may recommend a specific shampoo or a mild cream.
- Treating infection: if the skin becomes infected, a doctor may prescribe a suitable treatment.
Prevention
Cradle cap cannot always be prevented, but gentle routine scalp care may reduce buildup.
- Wash the baby's scalp regularly with a mild baby shampoo
- Gently brush the scalp to lift loose scales
- Avoid harsh soaps and vigorous scrubbing
- Do not pick at or pull off crusts
- Keep the skin clean and dry in affected folds
When to See a Doctor
Cradle cap is usually harmless, but see a doctor if:
- The rash spreads beyond the scalp to large areas of the body
- The skin becomes very red, swollen, warm, weepy, or develops pus, which may signal infection
- The baby seems uncomfortable, itchy, or unwell
- The patches do not improve with gentle home care, or you are unsure whether it is cradle cap or another rash such as eczema
Frequently Asked Questions
Is cradle cap harmful to my baby?
No. Cradle cap is harmless and does not usually itch or bother babies. It is not caused by poor hygiene or infection and is not contagious. It almost always clears up on its own within weeks to a few months.
How can I treat cradle cap at home?
Wash your baby's scalp regularly with a mild baby shampoo and gently loosen scales with a soft brush or cloth. Applying a little baby oil before washing can soften crusts so they lift off more easily. Avoid picking at the scales.
What causes cradle cap?
It is thought to be caused by overactive oil glands, possibly stimulated by hormones from the mother, along with a common skin yeast called Malassezia. It is not caused by allergies, poor hygiene, or anything the parents did.
When will cradle cap go away?
Cradle cap usually clears on its own within a few weeks to a few months and often resolves by the time a baby is around six to twelve months old. Gentle home care can help while it settles.
When should I see a doctor about cradle cap?
See a doctor if the rash spreads widely, the skin becomes very red, swollen, weepy, or develops pus, the baby seems uncomfortable, or the patches do not improve with gentle care. These may need treatment or another diagnosis.
References
- American Academy of Dermatology. Cradle cap.
- MedlinePlus, U.S. National Library of Medicine. Cradle cap.
- Mayo Clinic. Cradle cap — Symptoms and causes.
- American Academy of Pediatrics. Cradle Cap and Seborrheic Dermatitis in Infants.