What is cradle cap and what causes it in babies?
Applies to age: 0–12 months
In short
Cradle cap is a harmless skin condition, common in infants: patches of greasy, scaly skin. Its cause is not clear, and it cannot be caught from other infants.
What is normal
Some claims: international norm
- Cradle cap is a harmless skin condition, common in infants.
Source: NHS · international norm – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
Cradle cap is a harmless skin condition that's common in babies.
NHS · open the source · accessed: 2026-10-12 · license [1]
- The main symptom of cradle cap is patches of greasy, scaly skin.
Source: NHS · international norm – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
The main symptom of cradle cap is patches of greasy, scaly skin.
NHS · open the source · accessed: 2026-10-12 · license [1]
- Cradle cap usually appears on the scalp and face, but sometimes also affects the diaper area and the skin folds.
Source: NHS · international norm – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
It's usually found on the scalp and face, but sometimes affects the nappy area and areas where the skin creases.
NHS · open the source · accessed: 2026-10-12 · license [1]
- The cause of cradle cap is not clear, and it cannot be caught from other infants.
Source: NHS · international norm – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
The cause of cradle cap is not clear, but it cannot be caught from other babies.
NHS · open the source · accessed: 2026-10-12 · license [1]
- Cradle cap usually goes away on its own within a few months.
Source: NHS · international norm – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
It usually goes away on its own within a few months, but there are things you can try to make it better.
NHS · open the source · accessed: 2026-10-12 · license [1]
- Cradle cap is not itchy, is not painful and does not bother the child.
Source: NHS · international norm – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
It is not itchy or painful and does not bother your baby.
NHS · open the source · accessed: 2026-10-12 · license [1]
- In infants, seborrheic dermatitis (ŁZS) may show up as white or yellow, greasy scales on the hairy scalp, that is, cradle cap.
Source: Portal Pacjenta – show the quote
Verbatim quote from the source:
Polish original
U niemowląt ŁZS może się objawiać jako białe lub żółte, tłuste łuski na owłosionej skórze głowy (tzw. ciemieniucha).
Portal Pacjenta · open the source · accessed: 2026-10-12 · license [2]
When to worry
All claims: international norm
- Bleeding, leaking fluid and swelling may be signs of an infection or another condition, such as atopic dermatitis or scabies.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
Bleeding, leaking fluid and swelling could be signs of an infection or another condition like atopic eczema or scabies.
NHS · open the source · accessed: 2026-10-12 · license [1]
Worth discussing with a doctor:
- Cradle cap that does not improve after a few weeks of care is worth discussing with a doctor.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
your baby's cradle cap does not get better after a few weeks of treatment
NHS · open the source · accessed: 2026-10-12 · license [1]
- Cradle cap that covers a child's whole body is worth discussing with a doctor.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
your baby has cradle cap all over their body
NHS · open the source · accessed: 2026-10-12 · license [1]
- Crusts that bleed or leak fluid are worth discussing with a doctor.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
the crusts bleed or leak fluid
NHS · open the source · accessed: 2026-10-12 · license [1]
- Affected areas that look swollen are worth discussing with a doctor.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
the affected areas look swollen
NHS · open the source · accessed: 2026-10-12 · license [1]
See a doctor
- A patient who comes in sick to a primary care (POZ) clinic should get an appointment on the day of the request, and if that is not possible, at a time agreed with them.
Source: Portal Pacjenta – show the quote
Verbatim quote from the source:
Polish original
Jeśli przyjdziesz chory do przychodni, powinieneś uzyskać wizytę w dniu zgłoszenia.
Portal Pacjenta · open the source · accessed: 2026-10-12 · license [2]
Polish original
Jeśli to niemożliwe - w terminie uzgodnionym z tobą.
Portal Pacjenta · open the source · accessed: 2026-10-12 · license [2]
- At night (18:00–8:00) and on holidays and weekends, ad hoc medical help is provided by night and holiday care (NiŚOZ).
Source: Portal Pacjenta – show the quote
Verbatim quote from the source:
Polish original
W godzinach nocnych (18:00–8:00) oraz w święta i weekendy doraźnej pomocy udziela nocna i świąteczna opieka zdrowotna.
Portal Pacjenta · open the source · accessed: 2026-10-12 · license [2]
- If an infant or child has symptoms of atopic dermatitis (AZS), see a doctor for advice.
Source: Portal Pacjenta – show the quote
Verbatim quote from the source:
Polish original
Jeśli widzisz objawy u niemowlęcia lub dziecka, idź po poradę do lekarza.
Portal Pacjenta · open the source · accessed: 2026-10-12 · license [2]
international norm “International norm” next to a section heading means its claims come from a non-Polish source, because no Polish source in our registry covers this topic. When this applies to only some of the claims, the foreign ones carry the same label next to their source.
Sources
- NHS (nhs.uk, Anglia)License: Open Government Licence v3.0. Source: NHS (nhs.uk, Anglia). Content summarized and translated by the editors; changed relative to the original. Contains public sector information licensed under the Open Government Licence v3.0. The summary is ours and is not attributed to the NHS.
- Portal Pacjenta (pacjent.gov.pl)
- https://pacjent.gov.pl/aktualnosc/azs-atopowe-zapalenie-skory-u-dzieci
- https://pacjent.gov.pl/jak-dziala-podstawowa-opieka-zdrowotna
License: CC BY 3.0 PL. Source: Portal Pacjenta (pacjent.gov.pl). Content summarized and translated by the editors; changed relative to the original.