Green Baby Poop: Why It Happens And How To Act

When you first bring your baby home from the hospital, his poop for the first few days will be black in color. This is as a result of the black and tarry meconium present in their gut at the time of birth.

When you start to breastfeed, the poop slowly changes and begins to transition into a dark green color, and by the fifth day, the poop will settle into the consistent yellow color. The yellow and consistent poop is usually as a result of the fat in your breastmilk.

In the first six weeks, the baby gains weight and they should be pooping about three or four times each day. Plenty of poop means that they are getting enough milk. There are times you will notice that your baby has green poop; it is a sign that something is going on.

Green Baby Poop: Why It Happens And How To Act
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Reasons Why Your Baby May Have Green Poop

A Bug

If the baby is unwell, it can cause the poop to change in color. This may last a couple of weeks. Do not be worried about it, as the baby will simply recover on their own. This could be a simple stomach bug, which is common for many people.

Keep breastfeeding your baby, unless you notice other symptoms that may necessitate a visit to the doctor’s office.


If you are producing too much milk and the baby is feeding more than needed, they could be receiving a low/fat and high-sugar content in the milk that is likely to overwhelm their gut. This can cause them to have a watery green stool. Simply dial down the feeding.


If your baby is old enough to take in solid food, they could ingest something green that is causing the poop to turn green. Also, foods that contain chlorophyll, which is what is found in green plants, can easily cause the poop to turn green.


This is often the most common culprits to poop color changes. It happens when the baby’s small intestines are unable to absorb water, which can be due to a virus.

Diarrhea changes the number of electrolytes and water in the poop, and because the materials move through the digestive system faster than normal it can cause a change in the poop color.

Food Sensitivity

Your baby could be having an allergic reaction to something you are feeding them in their diet. Also, when breastfeeding, always pay attention to what you ingest as it could also affect the milk you are supplying to the baby.

When Should You Worry And See A Doctor?

Green poop really isn’t a cause of concern, but it helps to know what poop is normal, and what isn’t. Black poop in the first few days is okay, and after that yellow poop is fine.

Of course, green poop is a sign that something isn’t right with the baby, but it is not a serious issue. Now, if you notice any of the following colorings on the poop, you should consider taking the baby to the doctor, because something more serious could be wrong with the baby.

Pale Colored Poop

If the poop is clay-colored or pale, it means there is a problem with your baby’s gallbladder, liver or pancreas. This is a result of having less bile in their stool. You should consult with a doctor immediately if you notice this.

Other symptoms that can accompany this include vomiting and pain.

Very Dark Poop

This is normal for newborn babies that are a few days old. It is called meconium as we have mentioned above. But if you notice dark poop in older children, then it could be a sign of gastrointestinal bleeding.

You should carefully monitor the baby, and look out for other symptoms, then call your doctor immediately. If there is blood in the poop, then you must go to the emergency room immediately.

Green Baby Poop: Why It Happens And How To Act
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There are plenty of times when mothers of newborns find themselves freaking out over the baby, but in most cases, it’s usually not really a big deal.

However, if you notice signs that your baby is dehydrated, has a high fever, is vomiting, or has a lack of interest in eating or anything else, your baby is sick and needs to be taken to the hospital.