If you think your baby might have a high temperature, use a thermometer to check if you need to seek medical advice.

How to Check Temperature

For a quick and accurate reading, use a digital thermometer. Place it under their arm, keep it still for the necessary time, and read the result.

Accuracy of Digital Thermometers

Properly using a digital thermometer in your child’s armpit can give an accurate reading. External factors like clothing or room temperature could impact the result.

Types of Thermometers

While there are other thermometers available, digital ones are the most precise for babies. Avoid using older mercury thermometers as they can be unsafe.

High Temperature in Children

A high temperature in children is usually a sign that the body is fighting an infection. Consult a healthcare professional if you’re worried.

Managing High Temperature

Make sure your child stays hydrated to prevent dehydration and keep an eye on their condition at home. Seek help if needed.

High temperatures are common and often resolve without treatment. Confirm a fever by using a thermometer.

Possible Causes of Fevers

Fevers are often a result of infections like respiratory or ear infections, or common childhood illnesses.

Other possible causes of fevers include:

• Viral infections such as the flu or common cold
• Bacterial infections such as strep throat or urinary tract infections
• Autoimmune disorders like lupus or rheumatoid arthritis
• Medications such as antibiotics or anticonvulsants
• Cancer, especially leukemia or lymphoma
• Heat exhaustion or heat stroke
• Inflammatory conditions like arthritis or inflammatory bowel disease

When to Seek Medical Help

• Severe symptoms such as neck stiffness or persistent fever require immediate medical attention.
• If you are unable to reach your GP, it is important to call 111 for assistance and guidance.
• It is always better to seek medical help sooner rather than later, especially if you are experiencing severe or unusual symptoms.

Home Treatment for Fever

Keep your child hydrated and ensure they are dressed comfortably. Avoid sponging them with water.

Encourage your child to rest and get plenty of sleep to help their body fight off the infection causing the fever.

Offer lukewarm sponge baths or use a fan to help lower their body temperature if they are uncomfortable.

Using Antipyretic Medications

When necessary, use paracetamol or ibuprofen to reduce fever. Follow the instructions carefully and make sure to give the correct dosage based on your child’s weight.

Avoid giving aspirin to children, as it can increase the risk of Reye’s syndrome, a rare but serious condition.

Consult your healthcare provider if your child’s fever persists for more than a few days or if they develop other concerning symptoms.

Signs of Serious Illness

Seek advice from a nurse or doctor regarding high temperatures in children.

If an infant under 3 months has a high fever, seek medical help immediately.

Key Points on Fevers

• Most fevers are common and often caused by viral infections.
• Many fevers can be managed at home.
• Get help for infants with a fever.
• Stay hydrated when you have a fever by drinking plenty of fluids.
• Rest is important when you have a fever to help your body recover.
• Over-the-counter medications like acetaminophen or ibuprofen can help reduce fever and provide relief from symptoms.
• Seek medical attention if a fever is accompanied by severe symptoms such as difficulty breathing, chest pain, or change in mental status.

About Fevers

Fevers are usually mild and can be managed at home. Learn more about fevers in babies.

Recognizing Fever Symptoms

• Symptoms like a hot face, chills, and discomfort are common signs of a fever.
• Fever may also cause additional symptoms like sweating or irritability.

Use a thermometer to check the temperature for confirmation.

CHECK YOUR SYMPTOMS — Use the Symptom Checker for medical advice.

Causes of Fevers

Fever is the body’s response to infections, often caused by viruses. Bacterial infections can also lead to fevers in children.

Fevers may occur after vaccinations or due to underlying issues beyond typical childhood illnesses.

Consulting a Doctor

Discuss your child’s symptoms, health, and recent activities with a doctor for a proper evaluation.

• Monitor your child’s eating and drinking habits.
• Provide information about your child’s overall health.

• Inform the doctor if your child has been travelling recently.
• Let the doctor know if your child has had contact with someone who has an infection.
• Inform the doctor about any medications your child is currently taking.
• Provide information about your child’s childhood vaccinations.

An examination may include taking the temperature with a thermometer.

In some cases, tests may be recommended.

ASK YOUR DOCTOR — For general advice on questions for your GP or specialist, use Question Builder.

When should I take my child to see a doctor?

If you’re concerned or if your child:

• shows other signs of illness
• is vomiting and not drinking fluids well
• has a rash
• has a fever above 40 degrees
• has a febrile convulsion (seizure)
• has ongoing headaches
• has ongoing stomach pain
• is sensitive to light
• has a bulging fontanelle
• has had a fever for more than 2 days
• seems to be getting sicker
• has travelled or been in contact with someone with a serious infection

When to seek urgent care

Seek immediate medical help for a child with an immune system issue and a fever above 38°C.

If a baby under 3 months old has a fever above 38°C, go to the hospital immediately.

Call an ambulance if your child:

• is drowsy
• is having trouble breathing
• has a stiff neck

FIND A HEALTH SERVICE — Use Service Finder to locate health services.

If your child’s fever is not coming down with home treatments, or if they are showing signs of dehydration, difficulty breathing, or other concerning symptoms, seek medical attention immediately.

It’s important to monitor your child’s fever closely and contact a healthcare provider if you have any concerns. Remember to follow the recommended dosage instructions for any medications you give your child and never hesitate to seek medical advice if you have any doubts or questions.

What are the complications of fever in children?

Fevers can sometimes trigger seizures in young children, known as febrile seizures.

Most febrile seizures are harmless, but consult a doctor to rule out a serious infection.

Treatment might be necessary to address the cause of the fever.

Can fever be prevented?

Most fevers are due to infections. Prevent infections by:

• covering sneezes or coughs with a tissue or elbow
• not sharing items with sick individuals
• keeping your child at home if they’re unwell
• ensuring they receive childhood vaccinations

Resources and Support

For more information on fever in children, visit the Royal Children’s Hospital Melbourne.

The Sydney Children’s Hospitals Network offers information on fever in various languages.

Call the healthdirect helpline on 1800 022 222 for assistance.

A temperature above 38°C is high for a child.

Most high temperatures are caused by common illnesses and usually improve within 3 days.

Monitor closely and consult your GP if you’re concerned.

When to check your child’s temperature

Check your child’s temperature if they:

• have flushed cheeks
• feel hotter than usual
• are sweaty
• are more irritable

How to check your child’s temperature

The best way to check temperature is using a digital thermometer.

Avoid using mercury thermometers.

Take the temperature in your child’s armpit for an accurate reading.

Non-urgent advice: Contact your GP or public health nurse (PHN) if your baby:

• A child younger than 3 months with a temperature above 38°C
• A child older than 3 months with a temperature of 39°C or higher
• A temperature accompanied by other symptoms

If you’re worried, seek medical assistance.

If your child has a low temperature, seek medical advice if they have symptoms.

Do not use a mercury thermometer

Never use a mercury thermometer. Call emergency services if your child is exposed to mercury.

If your child is exposed to mercury

Contact the Poisons Information Line if your child is exposed to mercury.

Call 999 if your child is exposed to mercury outside of the helpline hours.

More in Caring for a child

Page last reviewed on 30 September 2022
Next review on 30 September 2025

A low temperature in a baby may indicate illness or exposure to cold. Seek immediate medical attention.

• Causes of Low Baby Temperature: Infections, including viral or bacterial illnesses, can disrupt normal body functions, causing a drop in temperature. Low blood sugar levels, especially in premature babies or those with feeding difficulties, can also result in low body temperature. Premature babies are at higher risk due to their underdeveloped bodies and less body fat.

Early recognition of the causes of a low baby temperature helps prevent complications and speeds up recovery.

Accompanying Symptoms and Complications

Watch for additional signs when your baby’s temperature drops, especially if they had a low temperature after a fever.

• Indicators to Look for: Shivering, lethargy, breathing issues, and pale or cool skin may suggest that your baby is struggling to maintain normal temperature levels.

If your baby shows these symptoms along with a low temperature, seek medical assistance promptly to avoid complications.

Ideal Baby Temperatures

Normal body temperature for babies typically ranges from 36.5°C (97.7°F) to 37.5°C (99.5°F). Anything below 36.5°C (97.7°F) is considered low and needs quick attention.

• Recognizing Temperatures: Low temperature feels cold to the touch, while high temperature indicates fever, which could signal an infection or a different underlying condition.

Regular monitoring of your baby’s temperature ensures they stay within the safe range.

Treatments

If your baby has a low temperature, dressing them in warm layers, using a heating pad or warm water bottle, skin-to-skin contact, and seeking medical care if symptoms persist are recommended steps for raising their body temperature safely.

Acting promptly can prevent serious health complications like hypothermia or respiratory distress.

Prevention of Low Temperature in Babies

Prevent a low fever temperature in your baby by regulating their environment proactively with proper dressing, maintaining a comfortable room temperature, avoiding drafts, and monitoring their temperature regularly.

Follow these easy steps to prevent low temperatures in infants and ensure their well-being.

When to See a Doctor

If your baby’s temperature drops or if you notice any concerning symptoms, it is important to seek medical help. Contact a healthcare professional if your baby’s temperature falls below 36.0°C (96.8°F), if they are unresponsive, have breathing issues, or show other worrying signs.

Prompt medical attention can help prevent any complications arising from low baby temperature symptoms.

Conclusion

Being aware of the reasons, symptoms, and treatments for low baby temperature can assist parents in responding effectively and avoiding potential health risks. If your baby experiences low temperature or if it occurs after a fever, consult your pediatrician at Medway Hospital for advice.

Make sure to monitor your baby’s temperature regularly and take action promptly if you notice any discomfort or unusual changes. By providing proper care, you can ensure your baby stays safe, comfortable, and healthy. For any questions or concerns, don’t hesitate to contact Medway Hospital for expert guidance.