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Fever in a child: when to see a pediatrician and when to call 103

A child's fever is the most common cause of parental worry, yet most often it is an ordinary viral infection the body copes with in a few days. Judge the child's condition, not the number on the thermometer — and stay in touch with your pediatrician.

A young woman rests her hand on the head of a girl asleep in bed, with a thermometer and a glass of water on the nightstand

Common causes

  • Viral infections — colds, flu
  • Childhood infections, often with a rash
  • Ear infections and other bacterial infections
  • A vaccine reaction in the first day or two
  • Teething — a slight temperature rise

When to seek urgent help

Do not wait for a scheduled visit if you have any of these signs:

  • A baby under 3 months with a temperature above 38°C — see a doctor urgently or call 103
  • Seizures during fever — call 103
  • A rash that does not fade when pressed with a glass — call 103
  • The child is listless, hard to wake, refuses to drink
  • Labored or moaning breathing
  • Signs of dehydration: dry lips, no tears, little urination
  • Fever lasting more than 3 days without improvement

Ambulance: 103 (103 from a mobile) · Unified rescue service: 911

Your specialist

Pediatrician

What to bring to the visit

  • A fever diary: when it rose, what you gave, how it responded
  • The vaccination record or vaccination details
  • A list of medicines given to the child
  • Information about contact with sick people

Frequently asked questions

When to call an ambulance and when to book a visit?

With any red flags from the list above — call 103 right away. If the child is generally active, drinking and playing, book a pediatrician visit, or a home visit if needed.

A fever of 38–39°C in a child with no other symptoms: what should I do?

Contact your pediatrician even if there are no other complaints: the doctor looks for the cause during the examination and decides whether tests are needed. Until the visit, watch how the child feels and record the readings in a fever diary. If the baby is under 3 months, the child is listless or refuses to drink, or the fever has lasted more than 3 days, seek help urgently rather than waiting for a scheduled visit.

Is 37.5°C in a child a reason to see a doctor?

Look at how the child is, not just the number: if they are active, drinking and playing, keep watching and record the readings. If this temperature lasts more than 3 days, keeps coming back or other complaints appear, see the pediatrician without delay. If the baby is under 3 months, call the pediatrician right away with any rise in temperature, and with a temperature above 38°C see a doctor urgently or call 103.

At what temperature should I give a fever reducer?

Go by how the child feels: if they are lively, you often need not treat below 38.5°C. Specific advice and doses come only from the pediatrician — they depend on age and weight.

Can teething cause a fever?

Teething can cause only a slight rise in temperature, below 38°C. If the temperature is 38°C or higher, or it persists, do not put it down to teething — see the pediatrician.

Low body temperature (35.5°C) in a child: is it dangerous?

First take the temperature again after a few minutes to rule out a measuring error. If the low reading is confirmed in a baby under 3 months, or the child is listless, hard to wake or has unusually cold hands and feet, call 103. If the child is lively, eating and playing, tell the pediatrician about the readings.

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All symptoms

The information on this page is for reference only and does not replace a doctor's consultation. Only a doctor can make a diagnosis in person. If your condition worsens, call 103.