You run your fingers through your baby’s hair and notice thick yellow scales clinging to their scalp. They weren’t there a few days ago, and although your baby seems completely unbothered, it’s natural to wonder whether they’re uncomfortable, whether you should remove them or whether they’re a sign that something is wrong.
Cradle cap is one of the most common skin conditions in young babies, although not every baby develops it. While it can look worrying, it is usually harmless, isn’t painful and almost always improves on its own. Knowing when to leave it alone, when gentle treatment can help and when it might be something else can make caring for your baby’s scalp much less stressful.
What is cradle cap?
Cradle cap, known medically as infantile seborrhoeic dermatitis, is a harmless skin condition that usually develops during the first few months of life. It is most common during the first three months, although it can persist into the first year in some babies.
It appears as greasy yellow, cream or white scales that stick to the scalp. Some babies have just a few small patches, while others develop thicker crusts across much of the top of the head. The skin underneath may look slightly pink but is usually not sore or inflamed.
Although it mainly affects the scalp, cradle cap can also appear around the eyebrows, behind the ears, beside the nose or in skin folds where natural oils collect.
One of its most reassuring features is that babies are rarely bothered by it. Unlike eczema, cradle cap is usually not itchy. Parents are usually far more concerned by the appearance than the baby is.
Why do babies get cradle cap?
The exact cause is not fully understood, but it is thought to result from a combination of increased sebum production and the normal skin yeast Malassezia.
During the first few months of life, babies naturally produce more of the skin’s protective oil, called sebum. This can cause dead skin cells to stick together instead of shedding normally, creating the familiar flaky scales.
Malassezia lives harmlessly on healthy skin and may interact with these oils. This is still being researched, but it helps explain why cradle cap develops in some babies and not others.
Cradle cap is not caused by poor hygiene, and it isn’t contagious or an allergic reaction. It also doesn’t mean you’ve been washing your baby’s hair incorrectly. It is not usually linked to a vitamin deficiency, and many babies develop cradle cap despite perfectly normal skin care.
There is no proven way to prevent cradle cap.
Can I leave cradle cap alone?
Yes. In most cases, leaving cradle cap alone is perfectly safe.
Many parents feel they need to remove every scale, but there is no medical benefit to clearing the scalp quickly if your baby is otherwise comfortable. In fact, trying to pick the scales away can damage the delicate skin underneath, causing soreness, bleeding and occasionally infection. Secondary bacterial infection is uncommon.
Cradle cap usually settles gradually as your baby’s skin matures. Gentle care is far more effective than trying to remove everything at once.
What is the best way to treat cradle cap?
Treatment is mainly about softening the scales rather than forcing them off.
Applying a small amount of emollient, mineral oil or plain petroleum jelly before washing can help loosen stubborn patches. Afterwards, wash the scalp with a mild baby shampoo and gently brush with a soft baby brush only if the scales have already softened and loosened naturally. Regular washing is enough. There is no need to scrub the scalp or wash it repeatedly throughout the day, and there is no need to buy expensive cradle cap shampoos.
Don’t worry if a few hairs come away with the scales. This can happen because the hair is attached to the scale rather than because the follicle has been damaged. It doesn’t affect normal hair growth.
It’s equally important to know what to avoid. Don’t scratch at the scales with your fingernails or try to scrape them away with a comb, as this can injure the skin. Adult anti-dandruff shampoos should also be avoided unless they’ve been recommended by a healthcare professional, as they’re not designed for routine use in young babies. Although you may come across suggestions to use breast milk or olive oil, there is little evidence that these improve cradle cap. Olive oil is generally not recommended because it may disrupt the skin barrier and could encourage the growth of Malassezia.
Improvement usually happens gradually over several weeks, so patience is often the most effective treatment.
Is it cradle cap or eczema?
Because both conditions can cause flaky skin, they are often confused, but there are some important differences.
Cradle cap usually affects the scalp and produces greasy yellow or white scales that rarely seem to bother the baby. Eczema, by contrast, is typically itchy. The skin often looks dry, red and inflamed, and babies may rub their face against bedding or seem unsettled because their skin is uncomfortable. Eczema also commonly affects the cheeks, arms, legs and the creases behind the knees and inside the elbows.
Most babies with cradle cap do not go on to develop eczema, although some babies may have both conditions.
Other conditions, such as psoriasis or a fungal infection, can occasionally cause similar symptoms, although these are rare in young babies.
If the rash becomes very red, starts weeping, develops an unpleasant smell or your baby seems distressed by it, it is worth having it checked. These features are less typical of cradle cap and may suggest another skin condition or a skin infection.
How long does cradle cap last?
Cradle cap usually appears within the first few weeks or months of life and gradually improves as your baby’s skin matures.
Some babies only develop a few small patches that disappear within a few weeks, while others have thicker scales that come and go over several months before clearing completely. Even if it seems to return after improving, this is usually part of the normal course of the condition rather than a sign that anything is wrong.
Although a few hairs may come away with loosened scales, cradle cap does not damage the hair follicles or leave scars. Hair grows back normally once the condition settles.
When should I get medical advice?
Most babies with cradle cap do not need medical treatment. Gentle skin care at home is usually enough.
Arrange a review with your GP, health visitor or paediatrician if:
- The scalp becomes very red, swollen or inflamed
- The skin starts weeping, bleeding or producing pus
- Your baby seems uncomfortable or repeatedly scratches the area
- The rash spreads widely beyond the scalp
- You are unsure whether it is cradle cap or another skin condition
- Gentle home care has not improved the condition
A slightly oily smell can sometimes occur, but a strong or unpleasant smell, particularly alongside redness or weeping, is not typical and should be checked.
Seek urgent medical advice if your baby develops a fever or the scalp appears infected, as this may need treatment.
Cradle cap almost always gets better on its own
The reassuring news is that cradle cap is one of the most common and harmless skin conditions in early infancy. Although it can look dramatic, it rarely bothers babies and almost always settles naturally with time.
For most babies, gentle washing, softening the scales before brushing and resisting the temptation to pick at them are all that is needed. Improvement tends to happen gradually rather than overnight, and gentle care and patience are usually the best treatment.
If the rash changes, becomes sore or you begin to wonder whether it might be something more than cradle cap, your health visitor, GP or paediatrician can usually confirm the diagnosis with a simple examination and advise if any treatment is needed.
About the author
Dr Arindam Das is a Consultant Paediatrician with extensive experience in general paediatrics, paediatric gastroenterology and allergy. He completed his medical and postgraduate paediatric training in India before continuing his specialist training in the UK, including in Cambridge and London. Dr Das has received several academic and professional awards, including the Young Investigator Award from the European Gastroenterology Society in 2015. Alongside his clinical work, he contributes to paediatric education, guideline development and medicine optimisation, with a strong commitment to delivering safe, holistic care for children and young people.
Find the right specialist for you. Doctify uses verified reviews so you can make the best decision for your healthcare.
