The claim

「Teething causes high fever」

Q: Teething causes high fever

Myth — Body temperature may rise slightly with teething, but the AAP, citing a 2016 study in Pediatrics, is clear that a true fever (above 38°C / 100.4°F) is not associated with teething — it signals an illness or infection that may need treatment. Work up a high temperature as illness; do not let "teething" mask a real infection.

Verdict

Myth

Body temperature may rise slightly with teething, but the AAP, citing a 2016 study in Pediatrics, is clear that a true fever (above 38°C / 100.4°F) is not associated with teething — it signals an illness or infection that may need treatment. Work up a high temperature as illness; do not let "teething" mask a real infection.

Sources

AAP · American Academy of Pediatrics
American Academy of Pediatrics. (n.d.). Baby's first tooth: 7 facts parents should know. https://www.healthychildren.org/English/ages-stages/baby/teething-tooth-care/Pages/Babys-First-Tooth-Facts-Parents-Should-Know.aspx
Direct source · Academic institution / professional society · checked 2026-08-02

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「Teething causes high fever」

Verdict

Sources

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Further reading