Why does a newborn baby spit bubbles from the mouth?

Dec 23, 2024 Source: Cainiu Health

Dr. Zhou Xiaofeng

Introduction

Newborns spitting bubbles from their mouths may be caused by salivary gland development, exploratory behavior, hunger or feeding stimulation, gastroesophageal reflux, pneumonia, or other reasons. As newborns' salivary glands begin to develop gradually, they may produce excessive saliva, leading infants to expel the surplus saliva by spitting bubbles. No specific treatment is required, but parents should regularly wipe away saliva around the infant's mouth.

Generally, a newborn baby spitting bubbles may be caused by salivary gland development, exploratory behavior, hunger or feeding stimulation, gastroesophageal reflux, pneumonia, or other reasons. If there are any concerns, timely medical consultation is recommended. Detailed explanations are as follows:

1. Salivary Gland Development

A newborn's salivary glands begin to develop gradually, which may lead to increased saliva production. Infants may expel the excess saliva by spitting bubbles. No specific treatment is required, but parents should regularly wipe away saliva around the infant's mouth to maintain facial cleanliness and prevent drool rash.

2. Exploratory Behavior

During development, infants often explore their surroundings using their mouths, including sucking fingers or toys, which may result in bubble spitting. Ensure that objects the infant comes into contact with are clean and hygienic to avoid introducing bacteria or harmful substances.

3. Hunger or Feeding Stimulation

When newborns are hungry or during feeding, gastrointestinal motility increases, stimulating the salivary glands to produce more saliva. When saliva cannot be swallowed promptly, it may be expelled in the form of bubbles. Ensure on-demand feeding for the newborn to prevent excessive hunger or overfeeding.

4. Gastroesophageal Reflux

Infants often have underdeveloped esophageal sphincters, making them prone to gastroesophageal reflux, whereby stomach acid and digestive juices flow back into the esophagus, causing irritation and inflammation. The acid may irritate the throat and mouth, and infants may spit bubbles to relieve discomfort. Gastroesophageal reflux may be accompanied by symptoms such as vomiting, irritability, and slow weight gain. It is recommended to adjust feeding posture, keeping the infant upright during feeding to reduce reflux episodes. If necessary, doctors may prescribe antacids such as esomeprazole magnesium enteric-coated granules, hydrotalcite suspension, or domperidone suspension for treatment.

5. Pneumonia

Pneumonia may be caused by aspiration of foreign substances such as meconium, amniotic fluid, or gastric contents, or by infection with pathogens such as bacteria or viruses. Lung inflammation leads to increased secretions, and newborns may expel these secretions by spitting bubbles. Symptoms may include fever and refusal to eat. It is recommended to follow medical advice regarding medications such as cefuroxime axetil tablets, ambroxol hydrochloride oral solution, and paracetamol tablets.

In daily life, it is advisable to consume more nutrient-rich vegetables, fruits, and high-protein foods to enhance nutrition and immunity.

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