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Why Your Baby Smells Like Poop: Causes, Solutions, and When to Worry

Every parent knows that babies can generate some peculiar smells. While some are sweet and endearing, others, like the distinctive scent of poop, can be cause for concern. This article will explore why your baby may smell like poop, how to fix it, and when it might be time to seek medical attention.

Understanding Why Your Baby Smells Like Poop

Firstly, it’s essential to understand that smelling like poop occasionally isn’t necessarily a cause for alarm, especially if your baby has just had a bowel movement. However, if the smell is persistent, there might be some underlying causes.

Possible Causes

  • Infrequent Diaper Changes: The most common reason is infrequent diaper changes. Leaving a baby in a dirty diaper for too long can lead to smells lingering even after the diaper has been changed.
  • Dietary Issues: Your baby’s diet can also play a role. For instance, formula-fed babies’ poop typically has a stronger smell than breastfed babies. Certain types of food in your baby’s diet could also contribute to this.
  • Gastrointestinal Issues: Persistent poop smells can also indicate a gastrointestinal problem. These could range from mild issues like lactose intolerance to more severe conditions like celiac disease.

Ways to Alleviate the Smell

Fortunately, there are several ways to manage the unpleasant odor if your baby smells like poop:

  1. Regular Diaper Changes: Ensure you’re changing your baby’s diaper promptly and frequently, especially after bowel movements.
  2. Proper Cleaning: Use baby wipes to clean your baby’s bottom thoroughly during each diaper change.
  3. Diet Adjustments: If your baby has started solids, pay attention to the types of food that may be contributing to the smell and discuss with your pediatrician about possible changes.
  4. Consult a Doctor: If the smell persists, consider seeking medical advice. It could be a sign of an underlying health issue.

Foul-Smelling Baby Poop and Gas: Causes and Solutions

What Causes Foul-Smelling Baby Poop and Gas?

Various factors contribute to foul-smelling baby poop and gas, such as dietary changes or underlying health conditions like lactose intolerance. It’s important to remember that a baby’s gut is continually developing, and such changes are often a part of that process.

Why Does My Baby Have Smelly Gas and Diarrhea?

If your baby’s gas or diarrhea has a particularly unpleasant odor, it might be due to a stomach bug or a reaction to something in their diet. It’s also common for babies to have smelly gas or diarrhea when teething due to increased saliva production and swallowing.

Unusual Baby Smells: Breath, Farts, and Poop

What Causes a Baby’s Breath to Smell Like Poop?

A baby’s breath smelling like poop could be due to gastroesophageal reflux disease (GERD), poor oral hygiene, or a condition called breath-holding spells. Breath smelling like feces is uncommon in babies, and if you notice this, it’s essential to consult your pediatrician.

Why Do My Baby’s Farts Smell Like Rotten Eggs?

When a baby’s fart smells like rotten eggs, it usually means there’s sulfur in their system. This smell can originate from the foods they’re eating or because they’re having difficulty digesting certain nutrients, which results in the release of sulfur gases.

Baby Poop During Teething

Can Teething Cause Smelly Poop?

Yes, teething can lead to smelly poop in babies. This is typically due to excess saliva production that happens during teething, which can alter the baby’s bowel movements, leading to unusually smelly poop.

What Does Teething Poop Look Like?

Teething poop can be slightly different from regular poop. It might be more liquidy, almost like diarrhea, and may contain undigested food due to quick passage through the digestive tract. It may also have a stronger smell than usual.

Baby Poop and Health Conditions

What Does Baby C Diff Smell Like?

Clostridium difficile (C. diff) is a bacteria that can cause infections and lead to foul-smelling diarrhea in babies. A baby’s poop that smells unusually foul, almost sickly sweet, could indicate a C. diff infection.

What Does Lactose Intolerance Baby Poop Smell Like?

A lactose intolerant baby’s poop might have a stronger, more sour smell than regular poop. It may also be frothy, watery, or contain mucus, due to the baby’s difficulty in digesting lactose.

Baby Poop Color: Health Indicators

What Color is Baby Poop with Stomach Bug or Lactose Intolerance?

If a baby has a stomach bug, their poop may be green, yellow, or mucus-like. On the other hand, a lactose intolerant baby’s poop might be green or frothy due to undigested lactose.

When to Be Concerned About Your Baby’s Poop

If your baby’s poop continually smells extremely foul, or if there are persistent changes in the frequency, color, or consistency of the stool, it’s time to consult your pediatrician. Unusual poop patterns could be a sign of an underlying health condition that needs medical attention.

How Can Help

Understanding your baby’s habits, including those related to pooping and smelling, is an integral part of setting a successful sleep schedule. At, we recognize the connection between a baby’s overall health and their sleep patterns. Unusual smells can indicate discomfort or health issues, which could disrupt your little one’s sleep. offers expert advice and practical tips for parents to help their babies sleep better. If your baby is having trouble sleeping due to discomfort from digestive problems or a persistent smell of poop, we’re here to help. Visit us to learn more about the connection between sleep, diet, and your baby’s well-being, and discover effective strategies for ensuring a good night’s sleep for your baby and you.


While it’s perfectly normal for babies to have certain smells, a persistent poop-like smell may indicate an issue. Regular cleaning, frequent diaper changes, and mindful observation of your baby’s dietary patterns can go a long way towards resolving this. Remember, when in doubt, always consult a professional. Don’t forget that good sleep hygiene and overall health go hand in hand – something that we’re passionate about at!