Somewhere in the first week, you notice a rash across their cheeks, or tiny white dots across their nose, or skin peeling off their hands like they've just come back from a beach holiday - and you spiral slightly, because nothing in the birth prep class covered this.
Newborn skin goes through an enormous amount of change in a very short time, and the vast majority of it is completely ordinary. Here's a quick guide to what's what.
The really common ones
- Peeling skin, especially on the hands and feet - very common in the first 1-2 weeks as the outer layer sheds, more noticeable in babies born after their due date
- Milia - tiny white bumps across the nose, chin, or cheeks, caused by trapped skin flakes, which clear on their own within a few weeks without any treatment
- Erythema toxicum - blotchy red patches, sometimes with a small white or yellow centre, that come and go over the first week or two and are entirely harmless
- Baby acne - small red or white bumps, usually on the cheeks, appearing around 2-4 weeks as maternal hormones work their way out of the baby's system
- Cradle cap - flaky, sometimes yellowish patches on the scalp, which respond well to gentle brushing with a soft brush and a bit of baby-safe oil
A little less common, still usually fine
- Stork bites or salmon patches - pink marks on the eyelids, forehead, or nape of the neck, which fade over months to a couple of years
- Mongolian spots - flat, bluish-grey patches, most common on the lower back or buttocks, which fade over the first few years and are simply a variation in skin pigmentation
- Heat rash - small red bumps in skin folds or covered areas, usually resolving once the area is cooled and less bundled
What actually warrants a call
- A rash accompanied by fever, lethargy, or poor feeding
- Blistering, weeping, or skin that looks infected rather than just irritated
- Yellowing of the skin spreading beyond the face (worth reading alongside a jaundice check)
- Any rash you genuinely can't place, especially if it's spreading quickly or your baby seems unwell with it
The short version
Newborn skin is adjusting to life outside the womb, and most of what shows up in the first few weeks - peeling, spots, blotches - is a normal, temporary part of that adjustment, not a sign of a problem.
If in doubt, a photo and a quick message to your MCH nurse or GP is a perfectly reasonable way to get peace of mind, no appointment required for most of it.