My baby's stool suddenly smells really bad: could it be an infection?
⚡ Short answer: Sudden sharp stool smell can understandably worry parents.
Anonymous
bir anne · Diapers & Digestion
My baby's stool suddenly smells very sharp and foul. Could he have a bowel infection?
Maiyko AI ADVISOR
The real reply from the in-app AI advisor
Sudden sharp stool smell can understandably worry parents. There's no single explanation; a few things could be happening.
A newly introduced food (especially protein-heavy or sulfur-rich like eggs, meat, broccoli) can give stool a noticeable smell—this is usually harmless. During teething, more swallowed drool and faster gut transit can also shift the smell.
On the other hand, if sharp smell comes with *watery stools*, *mucusy stool*, *fever*, or *vomiting*, a bowel infection (viral or bacterial gastroenteritis) is possible. Tracking other signs matters: did the stool suddenly turn watery and frequent? Is your baby fussy or feverish?
Smell alone doesn't diagnose infection. If your baby's feeding and urination are normal, mood is good, and no fever—it's likely diet or teething causing the temporary smell. But if smell comes with diarrhea, fever, vomiting, or weakness—or if he's under 3 months—talk to your pediatrician.
⚕️ Health note: This answer is for general information only; it is not medical advice. Every baby is different — for decisions about your baby's health, consult your pediatrician.
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