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Fever is one of the most common reasons parents call or visit a pediatrician. But while a rising temperature can be concerning, it’s not always a sign of something serious. In fact, a fever is often the body’s natural way of fighting off infections.
Let’s break down what a fever really means, what temperatures are considered normal or risky, and when to seek medical advice.
🔍 What Is a Fever?
A fever is defined as a temporary increase in body temperature, usually due to an illness. In children, a rectal temperature of 100.4°F (38°C) or higher is considered a fever.
It’s important to remember: fever is a symptom, not a disease. It typically signals the body is responding to a virus or bacterial infection.
🌡️ What’s Considered Normal?
Normal range: 97°F to 99°F (36.1°C to 37.2°C)
Low-grade fever: 100.4°F to 102.2°F (38°C to 39°C)
High fever: 102.2°F and above
Very high (serious concern): 104°F (40°C) or higher
Children can tolerate higher fevers than adults, and how they act is often more telling than the number on the thermometer.
🤒 Common Causes of Fever in Kids
Viral infections (cold, flu, COVID-19)
Ear infections
Strep throat
Roseola or other childhood illnesses
After vaccination (mild, short-lived fevers are common)
🚩 When to Worry About a Fever
While most fevers resolve on their own, call your pediatrician if:
Your infant is under 3 months and has a temperature above 100.4°F (38°C)
Your child is over 104°F (40°C)
Fever lasts more than 3 days
Your child is unusually sleepy, irritable, or hard to wake
Signs of dehydration (dry mouth, no tears, no urine in 8 hours)
Seizure or stiff neck
Trouble breathing or rash that doesn’t fade when pressed
🧊 Do You Always Need to Bring the Fever Down?
Not necessarily. If your child is alert, drinking fluids, and playing, you may not need to give medicine. But if the fever causes discomfort, you can:
Use acetaminophen (Tylenol) or ibuprofen (Motrin)—never aspirin
Keep them hydrated and lightly dressed
Use lukewarm sponging (no cold baths or alcohol rubs)
Always check the dosage with your doctor, especially for younger children.
🧠 Fever Myths vs Facts
❌ Myth: High fever always means a serious illness
✅ Fact: Many harmless viruses cause high fevers❌ Myth: Fevers always need to be treated
✅ Fact: Treatment is for comfort, not the number❌ Myth: A fever can cause brain damage
✅ Fact: Only extremely high fevers (above 107°F) pose that risk—and are very rare
👨⚕️ When in Doubt, Call the Pediatrician
Fevers can be scary, but understanding what's normal helps ease anxiety. Trust your instincts as a parent—if your child doesn't seem right, it's okay to ask for help.
📝 Final Thoughts
Fever is often your child’s way of fighting off infection. While most are harmless and go away within a few days, it’s crucial to know the warning signs and when to contact a healthcare provider. When managed with care and calm, even a fever can be less frightening.
