Baby poop colour chart: what every colour means
Yellow, green, brown, black, red, white — what each one tells you, what changes when you switch from breast milk to formula to solids, and the three colours that mean call a doctor now.
Almost every colour a baby produces is normal. The exceptions are few, specific, and worth knowing precisely — because two of them are genuine emergencies and the rest are not.
Here is the short version, before the detail: white, red and black (after the first few days) need a doctor. Everything else is almost certainly fine.
The colour chart
| Colour | What it usually means | Action |
|---|---|---|
| Black, sticky | Meconium — the first stools, in the first 24–48 hours | Normal at birth |
| Dark green-brown | Transitional stool, day 2–4, as milk replaces meconium | Normal |
| Mustard yellow, seedy | Classic breastfed stool from day 5 onwards | Normal |
| Tan or pale brown | Typical formula-fed stool, firmer and more paste-like | Normal |
| Green | Very common. Fast gut transit, iron-fortified formula, a cold, teething, or an imbalance of foremilk | Normal unless frequent, watery and the baby is unwell |
| Dark brown | Once solids start — the usual adult-like colour | Normal |
| Orange, red, blue | Almost always food dye or the food itself — carrot, beetroot, tomato, blueberry | Normal if it matches something eaten |
| White, chalky or clay-coloured | Bile is not reaching the gut — possible liver or bile duct problem | See a doctor today |
| Red streaks or fresh blood | An anal fissure, a milk protein allergy, or a gut problem | See a doctor today |
| Black after day 4 | Can indicate digested blood from higher in the gut | See a doctor today |
Stool that looks like dark red jelly mixed with mucus, in a baby who is drawing their legs up, crying in waves and vomiting, can be intussusception — a section of bowel telescoping into itself. Go to a hospital immediately. It is uncommon, but it is time-critical.
Green poop — the one that worries parents most
Green stool sends more parents searching at midnight than anything else on this list, and it is very rarely a problem. Common, benign explanations:
- Iron-fortified formula. Almost always turns stool dark green. Entirely expected.
- Fast transit. Bile is green and turns yellow-brown as it moves through the gut. If it moves quickly, it stays green.
- A cold or teething. Extra swallowed mucus makes stool greener and slimier for a few days.
- Foremilk-heavy feeds. If a baby switches breasts quickly at every feed, they get more lactose-rich foremilk, which can produce green, frothy, explosive stools. Letting the baby finish one side first usually fixes it within days.
- Something in your diet, if you're breastfeeding, or something the baby ate once solids start.
Green matters only when it comes with other things: frequent watery stools, blood, poor feeding, fever, or a baby who simply seems unwell.
Track it instead of trying to describe it laterAraia lets you log a nappy with its colour and consistency in a tap, and attach a photo. When the paediatrician asks "how long has this been going on?", you have the answer instead of a guess.
Get Araia freeHow stool changes as feeding changes
Exclusively breastfed
Mustard yellow, loose, seedy, mild-smelling. Frequent in the first six weeks — often after every feed — then potentially very infrequent, sometimes only once every few days. Both patterns are normal.
Formula-fed
Tan, yellow-brown or green. Thicker, more paste-like, and noticeably stronger smelling. Usually one to four a day and more predictable than breastfed stools.
Starting solids (around 6 months)
Everything changes at once: darker, firmer, considerably smellier, and full of recognisable food. Whole peas and bits of carrot passing through undigested is normal and doesn't mean the food isn't being absorbed. Constipation becomes more common here — it's the point where water intake and fibre start to matter.
Consistency matters more than colour
Once you've ruled out the three warning colours, texture tells you more than colour does.
- Hard pellets — constipation, regardless of frequency. Common after starting solids or switching formula.
- Watery, more frequent than usual, soaking into the nappy — diarrhoea. In a small baby this dehydrates fast; watch wet nappies closely.
- Mucus-y and slimy — normal occasionally, especially with a cold. Persistent mucus with blood needs review.
- Frothy and explosive — often a foremilk-hindmilk imbalance in breastfed babies.
When to call a doctor
Same day, without waiting:
- White, chalky or clay-coloured stool at any age
- Blood — streaks, spots, or dark tarry stool after the first few days
- Diarrhoea with fewer wet nappies, a dry mouth, or unusual sleepiness
- Diarrhoea in a baby under three months
- Hard stools that cause pain or bleeding on passing
- Any stool change alongside fever, vomiting, or a baby who seems unwell
Frequently asked questions
Why is my baby's poop green?
What does white baby poop mean?
Is blood in my baby's stool serious?
How often should a baby poop?
This guide is general information for Indian parents, written from published paediatric guidance (IAP, WHO, AAP). It is not medical advice and cannot account for your baby specifically. Anything that worries you — feeding, breathing, fever, weight, a rash — is a call to your paediatrician, not a search. In an emergency, go to a hospital.
Stop keeping it all in your head
Araia logs feeds, nappies, sleep and weight in one tap, tracks the IAP vaccination schedule for you, and answers questions using your own baby's history.