Newborn Gas Smells Like Rotten Eggs: Causes, Prevention, And Treatment


Welcoming a newborn baby is one of the most beautiful moments in life. However, it can also be challenging, especially when dealing with common baby problems like gas. If your newborn’s gas smells like rotten eggs, you might be wondering what’s causing it and what you can do to prevent or treat it. In this article, we’ll discuss the causes, prevention, and treatment of newborn gas that smells like rotten eggs.

What Causes Newborn Gas That Smells Like Rotten Eggs?

Newborn gas that smells like rotten eggs is caused by the accumulation of gas in the intestines. The gas is produced when the baby’s body digests food, especially breast milk or formula. When the gas is not released through burping or passing stool, it accumulates in the intestines and causes discomfort to the baby. The rotten egg smell is caused by the presence of sulfur in the gas.

Breast Milk and Formula

Breast milk and formula are the primary sources of nutrients for newborn babies. However, they can also cause gas, especially if the baby is not latching properly or if the formula is not suitable for the baby’s digestive system. Breast milk contains lactose, a sugar that is broken down by bacteria in the intestines, producing gas. Formula, on the other hand, contains proteins that can be difficult to digest, leading to gas.

Swallowed Air

Newborn babies tend to swallow air when they feed, cry, or suck on pacifiers. This swallowed air can also contribute to gas and discomfort.

Preventing Newborn Gas That Smells Like Rotten Eggs

Preventing newborn gas that smells like rotten eggs involves a few simple steps that parents can take.


Burping your baby after each feeding can help release the gas that has accumulated in the intestines. There are different burping techniques that parents can use, such as holding the baby over the shoulder or sitting the baby on the lap and patting their back gently.

Feeding Position

The feeding position can also affect the amount of air your baby swallows. Holding your baby at a 45-degree angle can help prevent the baby from swallowing too much air.

Breastfeeding Techniques

If you’re breastfeeding, make sure your baby is latching properly. A poor latch can cause your baby to swallow air and lead to gas.

Formula Selection

If you’re formula-feeding, choose a formula that is suitable for your baby’s digestive system. You can consult with your pediatrician to find the right formula for your baby.

Treating Newborn Gas That Smells Like Rotten Eggs

If your baby is already experiencing gas that smells like rotten eggs, there are a few things you can do to relieve the discomfort.

Bicycle Legs

Gently moving your baby’s legs in a bicycle motion can help release the gas and relieve the discomfort.

Tummy Massage

Gently massaging your baby’s tummy in a clockwise motion can also help release the gas and provide relief.

Gas Drops

There are over-the-counter gas drops that you can give to your baby to relieve gas. However, it’s important to consult with your pediatrician before giving any medication to your baby.


Newborn gas that smells like rotten eggs can be uncomfortable for both the baby and the parents. However, it’s a common problem that can be prevented and treated with simple steps. By burping your baby, choosing the right feeding position, and selecting the appropriate formula, you can prevent gas from accumulating in your baby’s intestines. If your baby is already experiencing gas, gentle exercises, tummy massage, and gas drops can provide relief. Remember to consult with your pediatrician if you have any concerns about your baby’s gas or digestive system.