First teeth usually arrive somewhere between 4 and 7 months, though the range that counts as normal is wide — some babies cut a tooth at 3 months, others not until closer to their first birthday. What's more useful than the exact timing is knowing which symptoms actually belong to teething and which ones get blamed on it unfairly.
What teething actually causes
The genuine signs are localized and mechanical: excess drooling, chewing on hands or objects, swollen or tender gums, and a baby who's fussier than usual — particularly around the tooth that's about to break through. These symptoms cluster in the days right before a tooth emerges and settle down once it's through.
The fever myth, specifically
Teething does not cause a true fever, and this isn't a minor semantic point — the American Academy of Pediatrics is specific about it because the myth has real consequences. Teething may raise a baby's temperature very slightly, but not to 100.4°F (38°C) or higher, which is the actual clinical threshold for fever. Teething also does not cause diarrhea, diaper rash, or a runny nose, despite how often all three get attributed to it.
If your baby has an actual fever, treat it as an actual fever — not a teething symptom — and follow your pediatrician's guidance for their age. Blaming a real fever on teething is one of the more common ways an ear infection, UTI, or other real illness gets missed early.
What actually helps
Gentle counter-pressure — a clean finger or cool, wet washcloth rubbed on the gums for a minute or two
A firm (not liquid-filled) teething ring, chilled in the refrigerator, not the freezer — frozen rings can be too hard and bruise the gums
Pediatrician-approved doses of acetaminophen or ibuprofen (for babies over 6 months) on genuinely rough days, following weight-based dosing
Extra comfort and closeness — teething discomfort is real, even without a fever
What to skip
Amber teething necklaces have no proven benefit and carry a real strangulation and choking risk if a baby chews through the string or the beads break loose — pediatric and safety organizations recommend against them. Numbing gels and liquids containing benzocaine also carry a rare but serious risk (methemoglobinemia, a blood disorder) in infants and are not recommended by the FDA for children under 2.
Sources
Every claim, sourced
4 sources cited in this guide
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