Cradle cap is a common, harmless skin condition in babies that causes greasy, crusty or flaky patches on the scalp, usually in the first months of life. It is a form of infant seborrheic dermatitis and is typically not painful, itchy, or contagious.

What cradle cap is

  • Cradle cap is the infant form of seborrheic dermatitis that appears as thick, oily or crusty scales on a baby’s scalp.
  • The scales are usually white, yellow, or brown and may look stuck to the skin rather than falling off like dry dandruff.
  • It most often shows up between about 1–3 months of age and usually improves on its own within the first year of life.

Symptoms to look for

  • Patches of scaling or crusting on the scalp that can be dry or greasy, with white or yellow flakes and mild redness.
  • The affected areas are typically not itchy or painful, and babies usually act well and unbothered.
  • Similar flaky areas can sometimes appear behind the ears, on the eyebrows, around the nose, or in skin folds like the armpits or diaper area.

What causes cradle cap

  • Cradle cap is not caused by poor hygiene, allergies, or infection, and it is not contagious.
  • Experts think it is linked to overactive oil (sebaceous) glands influenced by maternal hormones, which cause skin cells to stick and build up instead of shedding normally.
  • Yeast on the skin (such as Malassezia species) may also play a role by growing in the oily areas and contributing to inflammation.

Is it serious or dangerous?

  • In most babies, cradle cap is considered a benign, cosmetic issue rather than a serious medical problem.
  • It usually clears with time and gentle care and does not typically affect the baby’s overall health, growth, or comfort.
  • You should seek medical advice if the skin becomes very red, swollen, starts to ooze, has a bad smell, or if your baby seems unwell or very bothered, as that can suggest infection or another condition.

Basic home care (general info)

  • Gentle washing of the scalp with a mild baby shampoo and softly brushing to loosen scales is commonly recommended as first-line care.
  • Some pediatric sources describe using a small amount of baby oil or similar emollient before washing to soften thick crusts, but emphasize not scratching or forcefully picking them off.
  • For persistent, very inflamed, or widespread cases, clinicians may recommend medicated shampoos or creams; these should be used only under medical guidance, especially in young infants.

TL;DR: Cradle cap is a very common, non-contagious scalp condition in infants, causing greasy, scaly patches that usually are not painful or itchy and tend to clear on their own with gentle care.

Information gathered from public forums or data available on the internet and portrayed here.