Everything You Need to Know about Baby Poop

Written by Leena Tabaja. Customer Service Coordinator & proud mom of two.

Baby poop can come in a surprising range of colours, textures and consistencies, and what is considered “normal” can change as your baby grows. A newborn’s first stools will look very different from those of a baby who has started solids, and feeding method, age and individual differences can all influence what you see in the diaper. Even the frequency of bowel movements can vary from one baby to another.

While many changes in your baby’s poop are a normal part of growth and development, some colours, textures or changes in bowel habits may be worth discussing with your baby’s healthcare provider. Understanding what to expect can help you feel more confident during those many diaper changes and recognize when something may need a closer look.

From the Hospital to your Home: What to Expect

Your baby’s poop will change quite a bit during the first few days and weeks. The first stools you may see in the hospital, called meconium- the materials that accumulated in the intestines during pregnancy - are typically dark green to almost black, thick and sticky. As your baby begins feeding and the meconium clears, their stools gradually become lighter in colour and softer in texture. You may first notice these changes around the time you get home from the hospital, so don’t be alarmed if your baby’s diapers suddenly look different from those first stools you saw in the hospital.

Over the following weeks, poop may range from yellow and green to brown or tan, depending in part on whether your baby is breastfed, formula-fed or combination-fed. The frequency of bowel movements can also vary depending on how your baby is fed. In the early weeks, breastfed babies may poop several times a day, while formula-fed babies may have fewer bowel movements. As your baby grows, it’s also normal for the frequency to change.

As you get to know your baby’s routine, you’ll begin to recognize what is typical for them. From there, their poop will continue to change as they grow and eventually begin eating solid foods.

Baby Poop by Age 

How Feeding Influences Baby Poop

Your baby’s diet can influence the colour, texture and frequency of their poop, so you may notice some differences depending on whether your baby is breastfed, formula-fed or combination-fed.

Breastfed babies often have yellow or mustard-coloured stools that are soft or loose and may have a seedy appearance. In the early weeks, they may also have several bowel movements a day, although this frequency can change as they grow.

Formula-fed babies may have stools that are thicker or more pasty, with colours ranging from yellow and tan to brown or green. They may also poop less frequently than breastfed babies, although there is still plenty of variation from one baby to another.

Combination-fed babies may have characteristics of both. Their poop can vary in colour, texture and frequency depending on the balance of breast milk and formula they are receiving.

There is no single “right” type of poop for each feeding method. A range of colours, textures and frequencies can be normal, and your baby’s usual pattern may change as they grow.

Let’s Talk about Baby Poop Colours

Baby poop can come in a surprising range of colours, and many shades are perfectly normal. Colour can vary depending on your baby’s age, feeding method and, once solids are introduced, what they have eaten.

Things to pay attention to:

Black: Black stool seen after the meconium stage is considered abnormal and warrants a call to your baby’s healthcare provider. It can indicate dried or old blood passing through the intestines or, in some cases, excess iron.

White / Pale: Very pale, white or chalky stools are considered abnormal and can signal gastrointestinal issues or liver disease. The pale colour may reflect a lack of bile reaching the stool or a blockage in bile flow. If you see this type of stool, contact your baby’s healthcare provider.

Red: Red stool is also not typical and can sometimes indicate blood and should be assessed by your baby’s healthcare provider.

Baby Poop Textures: What do they mean?

Baby poop can range from thick and sticky to soft, loose or more formed. Its texture often changes with your baby’s age, feeding method and whether they have started eating solid foods.

Things to pay attention to:

Hard or pellet-like: Small, dry, firm stools that resemble pellets can indicate constipation, especially if they are difficult or painful to pass. Contact your baby’s healthcare provider if this persists or your baby seems uncomfortable.

Thin and Watery: Although baby poop is naturally soft or loose, diarrhea typically involves a sudden increase in watery stools or frequency compared with your baby’s usual pattern. It can be caused by an infection or other underlying issue, so contact your baby’s healthcare provider if you suspect diarrhea, particularly if your baby has a fever, blood in their stool or signs of dehydration.

Mucousy or foamy: Small amounts of mucus may occasionally appear in your baby’s poop. If stools are persistently foamy or contain excessive mucus, call your baby’s healthcare provider to rule out any underlying issues, especially if other symptoms are present.

How Often Should Babies Poop?

Your baby’s bowel movement frequency can change as they grow and their feeding routine evolves. In the early days of feeding, stools may be more frequent, with patterns changing over time depending on whether your baby is breastfed or formula-fed and as their diet becomes more established.

Some babies may have several bowel movements a day, while others may go a few days between stools. Breastfed babies may poop frequently in the early weeks, then less often as they grow; formula-fed babies may have a more regular pattern. What matters most is your baby’s usual pattern and whether their stools remain soft and easy to pass.

How Transitions can Affect Baby Poop

As your baby’s diet changes, you may notice differences in their poop’s colour, texture, smell and frequency. These changes are often a normal part of adjusting to new foods or feeding routines.

Transitioning Out of Breastmilk

Changing your baby’s milk source can affect their bowel movements as their digestive system adjusts. You may notice changes in stool colour, consistency, smell or frequency. Some variation is expected, but persistent symptoms or significant discomfort should be discussed with your baby’s healthcare provider.

Switching to a Different Formula

Whether you are changing brands or moving to a formula designed for an older age group, your baby’s poop may look or smell different. Stools may become firmer or change in frequency, depending on the formula and your baby’s individual response. Follow the preparation instructions for the new formula, and consult your baby’s healthcare provider if you have concerns about the transition.

Starting Solid Foods

When your baby begins eating solids, their poop may become thicker, firmer and stronger-smelling. Its colour may also change depending on the foods they eat, and you may notice small pieces of undigested food. These changes are common as your baby’s digestive system adjusts to a wider variety of foods.

Offer a variety of age-appropriate foods and fluids as recommended for your baby’s stage of development. If stools become hard, painful to pass or persistently difficult to pass, speak with your baby’s healthcare provider.

Transitioning from Formula to Cow’s Milk

Around 12 months of age, many babies can begin transitioning to pasteurized whole cow’s milk, if appropriate for their individual needs and local feeding guidelines. This change may affect stool colour, consistency and frequency. Cow’s milk should not replace breast milk or infant formula as a baby’s main milk drink before 12 months unless specifically advised by a healthcare professional.

When to call the doctor

While many changes in baby poop are normal, white or pale stools, blood in the stool, or black, tarry stools after the newborn meconium stage should be assessed by your baby’s healthcare provider. You should also seek advice for persistent diarrhea, ongoing constipation or significant changes in bowel habits, particularly alongside fever, vomiting, poor feeding or fewer wet diapers. If your baby has not had a bowel movement for several days, check with your healthcare provider if you are concerned, particularly if your baby is formula-fed or has recently started solids. Exclusively breastfed babies may naturally go several days between bowel movements once they are a few weeks old, provided their stools remain soft and they are feeding and growing well.

Conclusion: A Note to Parents

Baby poop can be unpredictable, and not every change means something is wrong. As your baby grows, their diapers will change along with them. Use this guide as a helpful reference, but remember that every baby is different. If something concerns you, trust your instincts and speak with your baby’s healthcare provider.

    Leena Tabaja 
     Customer Service Coordinator
     & proud mom of two