Baby Poop Color Chart: What’s Normal?
Before you had a baby, you probably didn’t have strong opinions about poop. Now you’ve got a whole vocabulary — “seedy”, “mustardy”, “a bit greener than yesterday” — and you’ve definitely taken a photo of a diaper to show someone.
That’s not weird. That’s parenting. Poop really is one of the ways babies tell you how things are going, and the colours can be startling if nobody’s warned you. So consider this your warning — in chart form.
The baby poop color chart
Here’s a general guide to the colours many parents see, and what’s usually behind them.
| Colour | Often seen | Usually means |
|---|---|---|
| Black, tar-like | First 1–3 days | Meconium — totally normal at the start |
| Dark green to brown | Days 3–5 | ”Transitional” stools as feeding gets going |
| Mustard yellow, seedy | Breastfed babies | The classic breastfed poop |
| Tan, yellow-brown, pasty | Formula-fed babies | Typical formula poop, often firmer |
| Green | Any age | Often normal — can follow changes in feeds, faster digestion, or iron in formula |
| Brown, thicker | After starting solids | Diet is changing; smells change too (sorry) |
| Red or red streaks | Any age | Worth a call to your doctor |
| White, pale grey or chalky | Any age | Call your doctor promptly |
| Black (after the first days) | After meconium stage | Worth a call to your doctor |
As always, every baby is a little different. The American Academy of Pediatrics and the NHS both have helpful guides if you want to read more.
The first week: a colour journey
Meconium (days 1–3). Your baby’s first poops are thick, sticky, and very dark green-black. It’s made of things your baby swallowed in the womb, and it’s notoriously hard to wipe off. (A little barrier cream on clean skin can make the next change easier.)
Transitional stools (days 3–5). As feeding gets established, poop becomes greener, browner and looser. This change is a reassuring sign that milk is going in and moving through.
Settling in (end of week 1). By the end of the first week, many breastfed babies have yellow, loose, seedy stools, and formula-fed babies have tan or yellow-brown, slightly thicker ones.
Breastfed vs formula-fed poop
Breastfed babies often have loose, yellow, seedy poop, and in the early weeks they may poop very often — sometimes after nearly every feed. Later on, some breastfed babies go several days without pooping and are perfectly comfortable.
Formula-fed babies tend to have firmer, pastier poop that’s tan, yellow or brown, and it usually smells a bit stronger.
Both are normal. If you’re combination feeding, you might see a mix.
Green poop: should I worry?
Green poop is one of the most googled diaper moments, and it’s very often nothing to worry about. It can show up when:
- Poop moves through the gut more quickly
- Feeds change, or your baby is combination fed
- Formula contains iron
- Your baby has a minor tummy bug or cold
If your baby is feeding well, has plenty of wet diapers, and seems happy, occasional green poop usually isn’t a concern. If it comes with other symptoms — or you’re just not sure — ask your pediatrician.
Texture and frequency matter too
Colour is only part of the story. Keep an eye out for:
- Very watery, frequent poops, which could be diarrhoea — especially with fever or fewer wet diapers
- Hard, pellet-like poops, or a baby who seems to strain and be in discomfort, which might suggest constipation
- Mucus or blood in the diaper
When to call your doctor
Health bodies generally suggest contacting your pediatrician if you notice:
- Red, black (after the meconium days), or white/pale grey poop
- Blood in the poop
- Diarrhoea with a fever, vomiting, or fewer wet diapers
- A baby who seems unwell, very sleepy, or isn’t feeding well
- Signs of dehydration, such as far fewer wet diapers than usual — see How Many Wet Diapers Should a Newborn Have?
The NHS has a clear guide to when to get urgent medical help for babies. If you’re ever worried, trust your instincts and call.
A handy habit: if a diaper looks unusual, snap a quick photo before you throw it away. It’s not glamorous, but it can help your doctor see exactly what you saw.
Why tracking diapers helps
It’s easy to lose count of diapers in a sleepy blur. Keeping a simple record of each change — wet, dirty or both, plus a quick note if something looked unusual — can help you:
- See if your baby is pooping less (or more) than usual
- Notice changes after a new formula or new foods
- Give your pediatrician clear answers instead of guesses
Every diaper, logged in a tap
Anvikare's diaper log records wet, soiled or mixed changes with the time, plus a note for anything unusual — so you can see your baby's pattern at a glance.
The takeaway
Baby poop comes in a surprising rainbow: black meconium, then green-brown, then yellow or tan — with occasional greens along the way. Most of it is normal. Red, black (after the first days), and white or pale poop are the colours to call your doctor about, along with any signs that your baby is unwell.
And yes, you can keep taking diaper photos. Your camera roll has seen worse.
See how parents keep count with a diaper tracker.
References & further reading
- American Academy of Pediatrics — Diapers & Clothing (HealthyChildren.org)
- NHS — How to change your baby’s nappy
- NHS — Constipation in children
- NHS — When to get urgent medical help for babies and children under 5
A gentle note: This article is for general information and is not medical advice. Every baby is different, and this chart is a general guide, not a diagnostic tool. If you're worried about your baby's poop, feeding or health, please contact your pediatrician or a qualified healthcare professional.