Can Teething Cause Fever in Babies? Real Facts and Reassuring Answers
Many parents wonder if teething can cause fever in babies. The short answer: teething itself rarely leads to a high fever, though a slight rise in temperature is possible. If your baby’s fever goes above 100.4°F (38°C), it’s important to consider other causes and reach out to your pediatrician if needed.
Teething is a natural developmental stage that can make your baby’s gums sensitive and bring on a range of symptoms. Mild temperature elevation, drooling, gum swelling, and fussiness are all common, but a high fever is not typical of teething.
What Happens During Teething? 🦷
Teething (medically: dentition) is the process of baby teeth breaking through the gums, usually between 6 and 24 months of age. As teeth push up from beneath the gums, they create pressure, which can lead to tenderness, swelling, and extra drooling.
Your baby’s body may respond with a mild inflammatory reaction, sometimes causing a slight temperature increase (99–99.5°F / 37–37.5°C). However, a fever above 100.4°F (38°C) is more likely to signal an infection or another illness.
Why Do People Think Teething Causes Fever?
Teething often happens at the same time as your baby’s immune system is developing and they’re exposed to more germs. So, a fever during teething is often due to a viral or bacterial infection, not the teething itself.
Babies tend to put everything in their mouths while teething, which increases the risk of picking up infections. This overlap can make it seem like teething is causing the fever, when it’s actually a coincidence.
Practical Signs: How to Recognize Teething Symptoms
- Drooling: Teething babies drool a lot—sometimes soaking their clothes.
- Swollen, red gums: Gums may look puffy, red, or show a whitish spot where a tooth is coming in.
- Chewing: Babies want to chew on everything to relieve gum pressure.
- Fussiness and sleep changes: Night waking and crankiness are common.
- Mild temperature elevation: Slightly raised body temperature (99–99.5°F / 37–37.5°C), but not a persistent high fever.
These symptoms alone don’t require medical treatment if your baby is otherwise well.
When Is Fever During Teething a Concern?
A mild temperature increase during teething is usually harmless. However, if your baby’s fever is:
- Above 100.4°F (38°C)
- Lasts more than 1–2 days
- Comes with other symptoms (like lethargy, rash, vomiting, diarrhea, or trouble breathing)
don’t assume it’s just teething. In these cases, infections like flu, urinary tract infection, or other illnesses may be the cause.
Medical Perspective: Why Teething Doesn’t Cause High Fever
The mild inflammation in the gums during teething isn’t strong enough to trigger a high fever. The immune response is local—limited to the gums—and doesn’t affect the whole body.
A high fever (above 100.4°F / 38°C) is usually a sign of a systemic infection caused by viruses or bacteria. So, fever linked directly to teething is rare and typically only mild.
What Should You Do If Your Baby Has a Fever While Teething?
- Check your baby’s temperature regularly.
- Watch for other symptoms: appetite, activity level, rash, vomiting, diarrhea.
- Create a calm environment: cool room, soft teething toys, offer fluids often.
- For mild temperature elevation: medication isn’t usually needed, but consult your health visitor if your baby seems uncomfortable.
- For high fever or other symptoms: call your pediatrician!
When to Call the Doctor 🚑
Contact your pediatrician right away if:
- The fever is above 100.4°F (38°C) and doesn’t go down within 24 hours.
- Your baby is very lethargic, unresponsive, or hard to wake.
- There’s a rash, vomiting, diarrhea, or trouble breathing.
- Your baby is younger than 3 months and has a fever.
If you’re unsure, it’s always safest to check with a healthcare professional.
Supportive Thoughts for Parents 💙
Teething can be a challenging time, but most symptoms are temporary and harmless. If you’re worried, you’re not alone—expert advice, reliable information, and community support can help you feel more confident as a parent.
Our app offers more guides, tips, and expert answers to help you navigate life with a little one. Feel free to explore, and remember: your questions are always welcome and you’re never alone.