Does Teething Cause Diarrhea?
Published on Mon Jan 26 2026
Summary
Teething does not directly cause diarrhea, but many babies develop loose stools during the teething period.
This usually happens due to increased saliva swallowing, changes in feeding, and exposure to germs when babies put objects in their mouth.
True diarrhea with fever, dehydration, or very watery stools is not normal teething and should not be ignored.
Introduction
Teething is an important developmental stage and often comes with symptoms like drooling, irritability, and disturbed sleep.
Many parents also notice loose motions during this time and wonder if teething is the cause.
Understanding what is normal during teething—and what is not—helps parents respond correctly and avoid missing illness signs.
Why Teething Is Linked to Loose Motion
1) Increased Saliva Swallowing
Teething increases saliva production.
Swallowing excess saliva can slightly loosen stools, but this is usually mild and temporary.
2) Putting Objects in the Mouth
Babies chew on toys, fingers, and other objects during teething.
This increases exposure to germs, which can cause stomach infections leading to diarrhea.
3) Changes in Feeding Pattern
During teething, babies may feed less or differently.
Sudden dietary changes can affect stool consistency.
4) Immature Digestive System
A baby’s digestive system is still developing, making stools more sensitive to small changes.
Loose Stools vs Diarrhea: What’s the Difference?
Teething-related stool changes are usually:
- Slightly loose but not watery
- No foul smell
- No blood or mucus
- Baby remains active and feeding reasonably
True diarrhea is more concerning and includes:
- Very watery stools
- Increased frequency
- Signs of dehydration
- Fever or vomiting
Can Teething Cause Severe Diarrhea?
No.
Teething alone does not cause severe diarrhea.
If a baby has frequent watery stools, fever, vomiting, or weakness, it is likely due to an infection—not teething.
What Parents Should Do If Baby Has Loose Motion During Teething
1) Maintain Hydration
Continue breastfeeding or formula feeding.
If stools increase, consult a pediatrician about ORS use.
2) Maintain Hygiene
- Wash hands frequently
- Clean toys and teething rings
- Avoid unclean objects in the mouth
3) Observe the Baby Closely
Monitor activity level, feeding, and urine output.
Normal energy usually indicates mild stool changes.
When to See a Doctor Immediately
- Very watery or frequent stools
- Blood or mucus in stool
- High fever
- Vomiting
- Signs of dehydration (dry mouth, very little urine, lethargy)
Common Myths About Teething and Diarrhea
- Myth: Diarrhea is normal during teething
- Fact: Diarrhea always needs monitoring
How Mool Health Helps Parents Understand Digestive Symptoms
Mool Health focuses on helping parents understand gut health from early life.
Many digestive symptoms are wrongly blamed on teething, delaying medical care.
Mool Health supports awareness around:
- Normal vs abnormal digestive symptoms in infants
- How gut development affects stool patterns
- When to seek medical advice
FAQs
Does teething cause diarrhea?
No. Teething does not directly cause diarrhea, though mild stool changes may occur.
Is loose motion normal during teething?
Slightly loose stools can happen, but watery diarrhea is not normal.
How long do loose stools last during teething?
They are usually short-lived and mild.
Should ORS be given during teething?
Only if advised by a pediatrician and if stools increase significantly.
When should I worry about diarrhea during teething?
If stools are watery, frequent, or associated with fever or dehydration.
Related Blogs
References
Medical note: This content is for general awareness only and does not replace pediatric medical advice.