When a parent checks a thermometer and sees a high number, it can be scary. Many parents search for answers when my child has a temperature of 39 degrees Celsius.
This article explains what it means, what you can do at home, when to see a doctor, and what usually happens during a medical visit. The goal is to help you stay calm and make safe decisions for your child.
What Does a Temperature of 39 Mean?
A temperature of 39°C (102.2°F) is considered a high fever in children. Fever is not a disease by itself. It is a sign that the body is fighting an infection.
Most fevers are caused by viruses, such as colds, flu, or other common childhood illnesses. Sometimes bacteria can also cause a high fever.
When my child has a temperature of 39, it usually means the immune system is working hard. According to the American Academy of Pediatrics, fever can actually help the body slow down germs. Still, a high fever should always be watched closely, especially in young children.
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Common Causes of a High Fever
There are many reasons a child may have a temperature of 39. Common causes include:
- Viral infections like the flu or stomach bugs
- Bacterial infections, such as ear infections or pneumonia
- Teething (usually causesa mild fever, not very high)
- Reactions to vaccines (often short-lasting)
- Overheating from too many clothes or a hot environment
Research shared by the Centers for Disease Control and Prevention shows that viral infections are the most common reason for fever in children.
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What to Do at Home
If my child has a temperature of 39, there are several steps you can take at home to help them feel better.
First, keep your child comfortable. Dress them in light clothing and keep the room at a normal temperature. Do not bundle them in heavy blankets.
Second, offer plenty of fluids. Water, breast milk, formula, or oral rehydration drinks help prevent dehydration. Fever causes the body to lose fluids faster.
Third, use fever-reducing medicine if needed. Acetaminophen or ibuprofen can lower fever and ease discomfort. Always follow the dosage based on your child’s age and weight. The Food and Drug Administration advises not to give aspirin to children because of the risk of Reye’s syndrome.
Fourth, let your child rest. Sleep helps the body heal. It is okay if they are less active than usual.
Check the temperature every few hours, but do not overcheck. Focus more on how your child looks and acts than on the number on the thermometer.
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Signs to Watch Closely
Even though fever is common, some signs mean you should pay extra attention. If my child has a temperature of 39 and also shows any of these symptoms, it could be more serious:
- Trouble breathing
- Severe headache or stiff neck
- Repeated vomiting or diarrhea
- Rash that does not fade when pressed
- Extreme sleepiness or trouble waking up
- Crying that cannot be comforted
The National Institutes of Health notes that behavior changes can be more important than the fever number itself.
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When to See a Doctor
You should contact a doctor or seek medical care if:
- Your child is under 3 months old with a fever
- The fever lasts more than 3 days
- The temperature goes above 40°C (104°F)
- Your child has seizures, confusion, or trouble breathing
- Your child has a chronic condition or a weak immune system
Trust your instincts. If you feel something is wrong, it is okay to call a healthcare provider.
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What to Expect During Your Visit
During the visit, the doctor will ask questions about symptoms, how long the fever has lasted, and any recent illnesses or exposures. They will check your child’s temperature, heart rate, breathing, ears, throat, and lungs.
In some cases, the doctor may order tests such as a throat swab, urine test, or blood work to find the cause. Many times, no testing is needed, and the doctor will explain how to care for your child at home.
If my child has a temperature of 39 due to a viral illness, antibiotics will not be given. Antibiotics only work against bacteria. The doctor may suggest fluids, rest, and fever medicine.
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Helping Your Child Feel Safe
Children often sense their parents’ fear. Stay calm and reassuring. Speak gently and explain what is happening in simple words. Comfort, cuddling, and attention can help reduce stress, which may also improve your child’s overall well-being.
A Word from GetMe Treated
Seeing a high number on the thermometer can be stressful. Understanding what fever means and how to respond can make a big difference.
With proper care, close monitoring, and guidance from trusted sources such as the NAPNAP PedsCE and the Centers for Disease Control and Prevention, most children recover without complications.
Always seek medical advice if you are unsure or worried about your child’s health.
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FAQs About My Child Has a Temperature of 39
Is a temperature of 39 dangerous for my child?
It is high, but not always dangerous. Most children recover well with proper care.
Can fever cause brain damage?
Fevers from infections usually do not cause brain damage, according to pediatric research.
Should I wake my child to give fever medicine?
If your child is sleeping comfortably, it is usually okay to let them rest.
Can I give a cool bath to lower the fever?
Lukewarm baths may help comfort, but cold baths are not recommended.
How often should I check the temperature?
Every 4 to 6 hours is enough unless symptoms change.
When will the fever go away?
Most fevers improve within 2 to 3 days, depending on the cause.