Few things worry parents more than seeing their baby with a fever. That little forehead feels hot, the thermometer reads higher than usual, and suddenly it feels like an emergency. But not all fevers are a cause for panic. In fact, sometimes a fever is simply your baby’s body doing exactly what it’s supposed to do.
What Counts as a Fever in Babies?
For infants, a rectal temperature of 100.4°F (38°C) or higher is considered a fever. Ear and forehead thermometers can be helpful, but rectal is still the most accurate for babies under one year.
Why Babies Get Fevers
A fever isn’t an illness—it’s a symptom. Most of the time, a fever means your baby’s immune system is fighting off something minor, like a cold or a viral infection. It’s the body’s natural defense mechanism.
When It’s Normal
- Mild fevers (100.4–101°F) after vaccinations are common.
- A low-grade fever during teething may happen, though usually under 100.4°F.
- If your baby is still alert, feeding, and playful, the fever is often not a sign of something serious.
When to Call the Doctor
You should contact your pediatrician right away if:
- Your baby is under 3 months old with any fever (100.4°F or higher).
- The fever is above 104°F.
- The fever lasts more than 3 days.
- Your baby shows other concerning symptoms: trouble breathing, unusual lethargy, persistent vomiting, or dehydration signs (like fewer wet diapers).
Comforting a Baby with a Fever
- Offer extra fluids or more frequent nursing/bottles.
- Dress your baby in light clothing and keep the room comfortably cool.
- Ask your pediatrician about appropriate use of infant Tylenol (acetaminophen).
- Avoid over-bundling or using cold baths, which can make discomfort worse.
Final Thought
Fever in babies can feel scary, but often it’s just the immune system hard at work. Knowing what’s normal—and when to call your doctor—can give you peace of mind during those long nights.
Disclaimer: This article is for informational purposes only and is not medical advice. Always consult your pediatrician with any concerns about your baby’s health.
Parenting is full of “firsts”—first smiles, first fevers, first steps. These early days may feel overwhelming, but they’re also fleeting. My studio specializes in capturing those once-in-a-lifetime newborn and baby milestones so you can remember the sweet moments, not just the stressful ones. If you’re in Big Spring, Midland, Odessa, or surrounding areas, I’d love to help you preserve these precious memories forever.
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