Fever in Children: What Parents Should Know
Ask an Expert. Pediatrician Dr. Saima N. Hussain shares how physicians think about fevers in children and what parents should understand when their child develops one.
What is the first thing going through your mind when a child comes in with a fever?
I’m immediately assessing the child’s overall appearance. Are they well-appearing, interactive, and hydrated, or do they look toxic and lethargic?
Before any other history, how a child looks when I walk into the room tells me a lot.
Age is also critical. In infants under 3 months, even a low-grade fever can signal a serious bacterial infection and requires careful evaluation.
What do most parents get completely wrong about fevers in kids?
Many parents focus on the number rather than the child’s behavior.
Fever itself is not dangerous. It is a sign that the immune system is doing its job.
A child with a temperature of 104°F who is playful and interactive is often less concerning than a quiet, listless child with a temperature of 101°F.
When should parents seek medical care for a fever?
Any fever in an infant under 3 months requires medical evaluation.
Parents should also seek medical care if a child appears very ill, has difficulty breathing, signs of dehydration, persistent vomiting, or altered mental status.
Persistent fever lasting more than four to five days without a clear source also warrants further evaluation.
THE BOTTOM LINE
Most fevers in children are caused by common viral infections and improve with time.
What matters most is how a child looks and behaves, not just the number on the thermometer.
About the Expert
Saima N. Hussain, MD, FAAP is a board-certified pediatrician
This article is for educational purposes only and is not a substitute for medical advice from your own healthcare provider.