Evidence-graded claim · Milestones
“Teething causes fevers.”
Teething can nudge temperature up slightly; it does not cause true fever.
A meta-analysis across studies of primary tooth eruption settled this about as cleanly as pediatric questions get. Teething is genuinely associated with gum irritation, drooling, fussiness, and a slight rise in temperature on eruption days. It is not associated with fever in the clinical sense, meaning 38C (100.4F) or above. Why this matters more than it seems: teething happens on and off for two years, which makes it an available explanation for almost any symptom. The documented danger is attribution error. A baby with a real fever who is assumed to be 'just teething' is a baby whose actual illness, often an ear infection or a virus, is being explained away by a coincidence of timing. The evidence-based rule is worth keeping. Fussiness, gnawing, and drool with a barely-elevated temperature fits teething. An actual fever means treat the child as sick, and call your pediatrician if you would have called for that fever anyway, teeth or no teeth.
Sources
- Massignan C, Cardoso M, Porporatti AL, et al. Signs and symptoms of primary tooth eruption: a meta-analysis. Pediatrics. 2016;137(3):e20153501. (Meta-analysis: eruption symptoms real, true fever not among them)
- Markman L. Teething: facts and fiction. Pediatrics in Review. 2009;30(8):e59-e64. (Clinical review of the attribution-error problem)
How claims get graded
Every claim is graded on two independent axes. Evidence strength asks: how good is the research behind the claim as parents actually state it? Randomized trials and meta-analyses outrank single observational studies, which outrank expert opinion. Consensus asks a different question: where does the field actually sit? A claim can rest on limited evidence while researchers still broadly agree, and both facts belong on the label.
Every empirical statement in a summary is tied to the sources listed on its page, and an automated check enforces the honesty rules: claims below strong evidence cannot use proof-language, and claims with limited or insufficient evidence must say so in plain words. The check runs on every update to this site; a summary that overclaims cannot ship.
The grades are educational summaries of published research, not medical advice, and they can change; each page shows when it was last reviewed.
This page summarizes published research for educational purposes. It is not medical advice, and it is not a recommendation for or against any practice for your specific child; those calls belong with you and your child's clinician.