What temperature counts as a fever in a child?

Generally, a temperature of 38°C (100.4°F) or higher counts as a fever. But the number that matters most changes with age: any fever at all in a baby under 3 months is an emergency regardless of how mild it seems, while an older, otherwise well child with a 38.5°C fever who is playful and drinking fluids often just needs monitoring at home.

Should I wake my child up to give fever medicine?

No — sleep is more valuable than a slightly lower number on the thermometer. If your child is sleeping peacefully, let them sleep. Fever medicine (paracetamol or ibuprofen, dosed by weight, not age) is for comfort when a child is miserable, not a mandatory response to any fever above a threshold.

What is a febrile seizure and is it dangerous?

A febrile seizure is a convulsion triggered by a rapid rise in temperature, most common between 6 months and 5 years. It is frightening to witness but usually brief (under 5 minutes) and doesn't cause brain damage. Any first febrile seizure, or one lasting more than 5 minutes, needs emergency evaluation — call 911 and time it.

Can teething cause a high fever?

Teething can cause a very mild temperature rise, irritability, and drooling, but it does not cause a true fever above about 38°C. If your teething baby has a temperature at or above that threshold, look for another cause — teething is not a safe explanation to fall back on for a genuine fever.

Child Fever: When to Worry, When to Wait, When to Go In

A digital thermometer gives you a number, but it doesn't give you the whole story. Two children at the exact same number on the display can be in genuinely different situations — one playing and asking for food, the other lethargic and not responding to you normally. As a parent, the natural worry is that every high fever means danger. The more useful truth: your child's age and behavior matter more than the number itself in deciding whether you need urgent care now or can monitor at home.

Fever thresholds by age

One rule governs everything else: the younger the child, the lower the threshold and the higher the urgency.

Age	Threshold	Action
Under 3 months	38°C (100.4°F) or higher	Go to the ER immediately — no exceptions, even if the baby otherwise seems fine.
3–6 months	39°C (102.2°F) or higher	Same-day medical assessment; go sooner if the baby is lethargic or feeding poorly.
6 months–2 years	39°C (102.2°F) or a fever lasting more than 24 hours	Same-day assessment; ER now if breathing difficulty, rash, or repeated vomiting appear.
Over 2 years	39°C or a fever lasting more than 3 days	Same-day assessment for either; sooner if the child looks seriously unwell regardless of the number.

Why under-3-months is a completely different category

A baby under 3 months has an immune system that isn't fully mature yet, and also lacks many of the cues that normally help us judge how sick a child is — a baby with a serious infection can look just as calm and sleepy as a healthy one. That's why any temperature of 38°C or higher at this age warrants immediate emergency evaluation with no exceptions, even if the baby otherwise seems completely fine. This isn't cautious overreaction — it's the standard medical benchmark, because lab testing is the only reliable way to rule out a serious infection at this age.

Signs that matter more than the number

For a child older than 3 months, watch these signs alongside the temperature — they're often more telling than the number alone:

Severe lethargy, difficulty waking, or not responding normally to being touched or talked to.
Breathing difficulty, fast breathing, or grunting with each breath.
A rash that doesn't fade when pressed with a clear glass (a serious red flag).
Repeated vomiting that prevents keeping any fluids down, or dehydration signs (no tears when crying, dry diapers for hours, dry mouth).
Neck stiffness, marked light sensitivity, or severe headache in older children.
Fever lasting more than 3 days without clear improvement.

When home monitoring is enough

A child older than 3 months who is playing or settles when held, drinks fluids, and has normal wet diapers is often fine despite a high number. Keep them hydrated, dress them lightly (don't overbundle), and watch behavior more than the thermometer. Fever medicine (paracetamol or ibuprofen, dosed by weight) is for comfort, not an obligation — if the child is sleeping peacefully, there's no need to wake them for medicine.

When to go in

Walk-in urgent care fits most fever situations in children older than 3 months — quick assessment, testing where needed, and either reassurance or treatment. Go straight to the ER for any sign from the list above, any baby under 3 months with a fever, or any febrile seizure.

Your child has a fever right now?

Emergency Plus in Dabouq, Amman accepts pediatric walk-ins 24 hours a day, with a dedicated nursing room and immediate testing.

Call: +962 79 247 1313

Sources

NHS — Fever in Children

Medical disclaimer: This article is for general information only and is not a substitute for professional medical advice, diagnosis, or treatment. If you think you are experiencing a medical emergency, call 911 or go to the nearest emergency department immediately. Emergency Plus in Dabouq, Amman is open 24/7 — +962 79 247 1313.