Why Breastfed Baby Gas Smells Like Rotten Eggs?

newborn farts smell like eggs

Gas in babies is normal and not cause for concern. You might worry that your kid has a health issue if there is a strong gas smell, but this is not always the case. There are various reasons why baby gas may smell like rotten eggs. Additionally, your food could be the cause of your breastfed baby’s gas smells like rotten eggs.

Read along to find out everything about it!

What causes baby gas to smell?

breastfed baby farts smell like rotten eggs

Many factors can cause a baby to pass gas. Air swallowing, which can occur while eating, may be a part of it. It’s possible that a mother’s diet plays a role in a baby’s foul gas smell. The development of the digestive system includes baby gas.

Your kid is developing a tolerance to certain components in formula or breast milk as they grow. There may be unpleasant but natural aspects of the process, such as extremely offensive gas, rotten egg farts, smelly poop, and others.

Babies may fart odorously after taking some medications. Do you both breastfeed and take medication? Has the baby’s pediatrician prescribed the medications? When you next visit your pediatrician, you can ask them specific questions about medications.

In addition, since babies spend a lot of time on their backs, digestion takes longer. Then, before the infant finally poops, you can anticipate a stinky fart if your baby is constipated! Ingredients broken down during digestion are the cause of the baby gas smell. Therefore, even though they can be unpleasant at times, scents are common.

Baby gas smells like rotten eggs

infant farts smell like rotten eggs

Your baby’s digestive tract could be to blame if you smell rotten eggs when they pass gas. It may occur because a digestive system struggles to break down the lactose in formula or breast milk. The cause may be the same if a breastfed baby’s poop smells like rotten eggs.

If a baby is fed a formula that contains lactose, the same rules apply to them. To decide which baby formula to attempt, you can learn about the various formula constituents. A stomach condition called gastroenteritis can also appear as a rotten-egg smelly fart.

But in addition to those symptoms, your baby will also experience diarrhea, vomiting, and fever. Consult a physician about your next steps if you experience any of the listed symptoms.

Preventing baby gas that smells like rotten eggs

infant gas smells like rotten eggs

Here are several easy cures to stop babies from passing gas that smells like rotten eggs.

Watch Your Diet

The solid food you consume gets to the baby through breast milk. Simply put, the same meal that gives you the smelly gas will give your infant the same symptoms. Make sure your diet is varied and rich in healthy vitamins and nutrients. Avoid eating complicated, spicy foods, and difficult-to-digest meals as well.

Modify the baby’s diet

Change your baby’s diet if you’ve discovered which foods make him or her fart nastily. To guarantee a balanced diet for your child, find the appropriate replacements for such ingredients. For instance, periodically substitute another baby superfood, like spinach, if your baby has a lot of gas after eating.

Avoid dairy products

In breastfed babies, a diet high in dairy products might result in unpleasant gas. If your child has an allergy to milk proteins, you can reduce or eliminate your use of milk products.

Try a different feeding position

Sometimes, excessive gas that smells like rotten eggs may be caused by an inconvenient breastfeeding posture. For feeding, you can experiment with various postures to alter the milk flow. Try lying on your back while keeping the infant on your belly.

The head needs to be higher than the bottle or breast. As a result, gravity will cause the milk to flow more slowly and stop the infant from overfeeding and inhaling air during feedings.

Keep in mind that holding the baby above the breast or bottle is the optimal feeding position to prevent gas. Decide which feels most comfortable for you. The baby can be placed on the stomach to help with the gastric passage and ease abdominal discomfort.

10 foods that may cause rotten egg gas in babies

To assist you in adjusting your diet and the food for your baby below is a brief section with a list of major causes of baby smelly farts. You don’t have to cut these foods out of your diet. Limit your intake of the following ingredients if you are breast.

  • Beans
  • Broccoli
  • Cauliflower
  • Brussels sprouts
  • Garlic
  • Onion
  • Dried fruits
  • Cheddar cheese
  • Asparagus
  • Eggs

Other baby bowel issues

newborn fart smells like rotten eggs

The majority of babies deal with gastrointestinal problems in addition to offensive gases. Some of the potential issues can be temporary and disappear as the infant’s colon and digestive system mature, while others would necessitate medical intervention.

Here are some of the most typical gastrointestinal problems that babies have. Let’s debunk the notion about how frequently babies poop first, though.

Baby doesn’t poop

Babies don’t need need to go potty every day, particularly in the first few months. If you only give your baby breast milk, you should anticipate the baby going for many days without pooping. It is typical because the infant needs the milk’s nutrients for growth.

Babies older than six weeks old occasionally go a week without pooping! It is not the same as constipation – so don’t worry. Additionally, babies who are fed formula have the propensity to poop more frequently than those who are breastfed.


Constipated babies have enlarged bellies and exert greater effort to poop, yet nothing happens. Babies that are constipated are unhappy and in agony from their cramps. Some infants who have constipation have irregular bowel movements and particular stool patterns.

The poop may be too liquid, too hard, too mushy, or hard and little, like pebbles. Solids that hinder bowel movement are passed around in liquid stools. Sometimes the poop is clay-like or sometimes contains blood Baby’s belly is difficult to touch, and most constipated babies don’t seem to be hungry.

Baby with constipation has foul gas but no stool. As part of its normal developmental phase, the baby experiences gas and constipation as he or she gets used to eating, digesting food, and going to the bathroom.

If you experience the symptoms mentioned, you can try a belly massage, increase your intake of fiber, or drink gripe water. The babies’ poop might be made easier by giving them a modest bit of fruit juice produced from skinless apples and plums.

Newborn babies pass gas excessively

For both adults and babies, farting is natural. There isn’t a rule in a textbook that specifies the acceptable level of farting. The frequency of farting is individual and does not imply that your baby has any potential health issues because every baby develops at his or her own rate.

Some babies may fart a few times a day, while others may do so more than 20 times. Don’t worry if you wonder why your baby farts so frequently. Once your baby’s digestive tract matures, the excessive farting phase should end.

Final Thoughts:

The little angel farts. The fact that it’s not always rainbows and unicorns while parenting a child is brought home to us every day. You should be aware that infant gas issues may have a strong smell like rotten eggs.

The causes of the stinky smell of baby farts include food, dietary sensitivities, allergies, overfeeding, and an underdeveloped digestive system. Most of the time, you shouldn’t be alarmed if your baby has smelly baby farts. But if your baby has a fever, erratic stools, blood in the stools, or smelly baby farts, you should consult a doctor.


Gas produced from sulfur is often compared to the odor of a rotten egg. The gases your baby produces through burping are usually the result of breaking down compounds in either human milk or formula.

There are several common causes of foul-smell gas. Some of these include food intolerances, high fiber, certain medications and some types of antibiotic use, and constipation. More serious causes include bacterial infection in the digestive tract or possibly colon cancer.