What should an 18-month-old's temperature be?
⚡ Short answer: Temperature is less important than how your baby looks — if fever is above 38°C, they're playing, drinking fluids, and breathing easily, you can monitor at home; but over 39°C with fatigue, refusing fluids, rapid breathing, or a rash means call your doctor immediately, and any signs of seizure, blue lips, or confusion means get to the ER right away.
Anonymous
18 aylık bebek annesi · Health
What should an 18-month-old's fever be? I wanted to get your opinion before going to the doctor.
Maiyko AI ADVISOR
The real reply from the in-app AI advisor
How your baby is acting matters as much as the fever itself. Normal body temperature measured under the arm is 36.5–37.5°C. Fever is considered 38°C or higher. Remember that underarm temperature is roughly 0.5°C lower than rectal temperature.
If your baby's fever is above 38°C but they're playing, drinking fluids, urinating normally, and breathing easily, you can monitor at home. Give plenty of fluids, dress them lightly, and keep the room at 21–22°C.
If fever goes above 39°C and your baby seems worn out, won't drink, has rapid breathing, or has a rash, contact your pediatrician. If fever comes with seizures, blue lips, or confusion, go to the ER immediately.
⚕️ Health note: This answer is for general information only; it is not medical advice. Every baby is different — for decisions about your baby's health, consult your pediatrician.
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