Typically, the average body temperature is around 37°C, but this can vary among individuals and throughout the day. A core temperature above 38°C is a sign of fever, with temperatures reaching 39°C or higher considered as high fevers. It is recommended to use a thermometer to accurately measure your temperature.

Causes of fever can be attributed to various factors such as cold or flu viruses among others. Common symptoms of fever may include feeling unwell, sweating, or feeling cold and clammy.

Explore more information about fever in adults presented on this page.

Video: Fever in adults

Kindly note that this video does not discuss fever in children.

(Healthify He Puna Waiora, NZ, 2025)

Taking care of yourself with a fever

Fever typically lasts between 3 to 5 days, and most individuals recover at home. In case of emergencies, refer to the medical help listed below.

• Stay hydrated by consuming plenty of fluids, with a focus on water intake. It is advisable to avoid alcohol as it can lead to dehydration. Rest well, wear comfortable clothing, and use a cool cloth to aid in temperature regulation.

Signs to seek medical help

While most instances of fever are not alarming, it is crucial to seek medical attention if:

• Your fever persists for more than 3 days
• You notice worsening symptoms
• You experience difficulty in breathing, severe headache, confusion, or have recently traveled

Instances requiring contact with a healthcare provider or Healthline 0800 611 116

If you have a fever along with:

• Dark urine
• Fever lasting beyond 3 days
• Shivering or shaking
• Severe headache
• Trouble breathing or confusion
• Immune-compromised status or undergoing specific treatments

In case of pregnancy and experiencing a fever, it is advisable to consult a healthcare professional. For prolonged fevers, seeking medical advice is recommended.

Call 111 or visit the hospital for:

If you have a fever along with any of the following:

• Hallucinations
• Vomiting
• Stiff neck or skin rash
• Difficulty breathing or rapid heart rate

Causes of fever and treatment options

Fever is the body’s response to infections like cold, flu, or other illnesses. Additionally, fever can be triggered by vaccinations, allergies, or inflammatory diseases. Mild fevers can be managed with rest and considering medications for symptom relief.

When to seek medical help for fever

Understanding the reasons and instances to seek emergency care for fever is crucial for ensuring optimal health outcomes.

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If fever is not causing discomfort or raising concerns, conservative treatment is recommended. Different guidelines apply for children under two years old and adults based on the severity and duration of the fever.

It is important to monitor a fever and seek medical attention if it persists for more than a few days, if there are other symptoms present such as difficulty breathing, severe headache, or persistent vomiting, or if the individual’s condition worsens. For children under two years old, it is recommended to contact a healthcare provider if their fever is above a certain temperature threshold.

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Fever accompanied by specific symptoms like pain during urination or persistent vomiting may indicate an underlying condition, necessitating medical evaluation in case of prolonged or escalating fevers.

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High fever, especially in vulnerable groups like young children or pregnant individuals, may require immediate medical attention. Monitoring for alarming symptoms is essential for prompt action.

Although high fevers can be concerning, they are often the body’s natural response to infection. Knowing when to seek medical help is crucial for optimal health outcomes.

It is important to remember that fever is the body’s way of fighting off infections. In most cases, a fever is a sign that the immune system is working to combat the illness. However, high fevers can be dangerous, especially for certain populations such as young children or pregnant women.

If a fever is accompanied by other symptoms such as severe headache, difficulty breathing, or confusion, it is important to seek medical attention immediately. These could be signs of a more serious underlying condition that requires prompt treatment.

Monitoring a fever with a thermometer and staying hydrated are important steps in managing a high fever. Over-the-counter medications such as acetaminophen or ibuprofen can also help reduce fever and alleviate discomfort.

Ultimately, knowing when to seek medical help for a high fever is crucial for ensuring the best possible outcome. If in doubt, it is always better to seek medical advice to rule out any serious complications.

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While most fevers resolve on their own without complications, certain signs indicate the need for emergency care. Recognizing these signs is vital for proper treatment and recovery.

Fevers are a common bodily response to infections; however, understanding when to seek medical help plays a critical role in achieving optimal health outcomes.

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Fevers in children can be distressing but indicate the immune system’s response to fighting infections. It is important to monitor temperature through various methods and consider administering fever-reducing medicine if the child is experiencing discomfort.

Contact the pediatrician before heading to the emergency room. A fever of 105 degrees F or higher should be treated as a medical emergency.

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Consult with a doctor if a child has a temperature of 100.4 degrees or higher. Emergency room visits are necessary if fever is accompanied by symptoms like rapid breathing, rash, or seizures.

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In healthy adults, fevers are usually not dangerous. Immediate medical attention is advised for fevers above 103 degrees accompanied by confusion, seizures, or severe pain.

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Recurring fevers can also be a symptom of certain cancers, such as lymphoma or leukemia. In some cases, fevers may be caused by inflammatory conditions like rheumatoid arthritis or infections like tuberculosis. It is important to monitor your fever and consult with a healthcare provider if it persists for more than a few days or is accompanied by other concerning symptoms such as severe pain, rash, or difficulty breathing.

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It is common to fall ill after traveling, with fevers often occurring post-travel, particularly from regions with malaria. Immediate treatment should be sought if symptoms manifest after travel.

Understanding when to seek emergency care for fever, especially in children, is of utmost importance.

healthdirect Australia offers free medical advice and support through qualified nurses and doctors.

For infants under 3 months old with a fever above 38℃, it is recommended to visit the nearest hospital emergency department.

It is important to monitor the infant’s temperature closely and seek medical attention if the fever persists or if other symptoms develop. Infants under 3 months old are more susceptible to serious infections, so prompt medical care is crucial.

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• A fever is the body’s immune response usually triggered by infections.
• Symptoms like sweating, chills, and high temperature can indicate the presence of a fever.
• Maintaining hydration and rest is essential during a fever.
• Consult a doctor if severe symptoms such as headache or confusion are experienced.
• Over-the-counter medications such as acetaminophen or ibuprofen can help reduce fever and alleviate symptoms.
• Avoiding activities that may raise body temperature, such as strenuous exercise, is recommended during a fever.

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A fever is defined by a higher-than-normal body temperature. Normal temperature ranges vary depending on factors like age and time of day, with a temperature of 38℃ or higher typically considered as indicative of a fever.

Various methods, such as touchless forehead or ear thermometers, can be employed to measure body temperature accurately.

It’s important to note that fevers are often a sign that the body is fighting off an infection or illness. While mild fevers are usually harmless and can be treated at home with rest and fluids, persistent or high fevers should be evaluated by a healthcare provider.

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An elevated temperature surpassing 38℃ signals the presence of a fever and may be accompanied by sweating, chills, and muscle aches.

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Fever serves as the body’s defense mechanism against infections, often viral or bacterial. Immediate medical attention is crucial for high fevers coupled with alarming symptoms.

In addition to seeking medical attention for high fevers, it’s important to stay hydrated and get plenty of rest. Over-the-counter fever reducers such as acetaminophen or ibuprofen can help lower a fever and ease discomfort. Avoiding strenuous activities and staying in a cool environment can also help the body recover more quickly.

If a fever persists for more than a few days or is accompanied by persistent pain, difficulty breathing, or other severe symptoms, it is important to seek medical attention promptly. Fevers can sometimes indicate a more serious underlying condition that requires medical treatment.

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Healthcare providers diagnose fevers by considering symptoms and may conduct tests if necessary. It is advisable to inform your doctor about recent travel history for better assessment.

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For infants under 3 months old with a fever above 38℃, immediate medical attention should be sought.

Consult a doctor if fever persists after three days or if concerns arise about accompanying symptoms or conditions.

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Fevers with severe symptoms like headache, vomiting, or confusion necessitate immediate medical attention.

• Children exhibiting certain symptoms should be taken to the emergency department.

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In case of high temperatures, ensure hydration and adequate rest. If fever persists, seeking medical advice is recommended.

Stay Hydrated

Stay hydrated by consuming clear, non-alcoholic fluids regularly.

Stay Cool

Dress in light clothing, maintain a comfortable room temperature, rest, and avoid excessive physical activity.

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Refrain from taking fever medicines unless discomfort is present. Carefully consider the use of pain relief medications and follow safety precautions as needed.

While fever is a normal immune response, persistent fevers require medical attention.

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If fever persists or worsens, seeking medical help is crucial to prevent complications.

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Febrile convulsions can occur in children due to fever. Seek medical advice if such symptoms emerge.

Febrile convulsions affect about 1 in every 30 children between 6 months and 6 years. Most children do not experience recurring convulsions, and these events do not typically result in long-term consequences. However, it is advisable to consult with a doctor if concerns arise.

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If you have concerns regarding symptoms, contact the healthdirect helpline at 1800 022 222 (NURSE-ON-CALL in Victoria) for round-the-clock advice from a registered nurse.

Source s :

Various health organizations offer insights on fever, with the last review conducted in March 2024.

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• Guidelines on medicines for children (opens in a new window) choosingwisely.org.au
• Questions to ask your doctor (opens in a new window) choosingwisely.org.au
• Tips for administering medications to children:
• Use a medication syringe or dropper for accurate dosing.
• Follow the prescribed dosage instructions carefully.
• Make sure to shake liquid medications well before administering.
• Keep all medications out of reach of children to prevent accidental ingestion.

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• Infographic on Fever in babies and children
• Details on Fever in children
• Fever is a common symptom in babies and children, often indicating that the body is fighting off an infection or illness.
• It is important to monitor a child’s fever and seek medical attention if it persists or is accompanied by other concerning symptoms.
• Fevers can usually be managed with appropriate medication and home care, such as rest and hydration.
• Consult a healthcare provider for specific guidelines on how to treat and monitor fever in children.

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• Information on Thermometers
• Guide on Fever medicines

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Learn how to manage your child’s fever, when to seek medical advice, and home remedies for fever.

Read more on Children’s Health Queensland website

Febrile convulsion factsheet – The Sydney Children’s Hospitals Network

A febrile convulsion, or seizure, can occur when the body experiences uncontrolled movements due to high fever.

Find out more on The Sydney Children’s Hospitals Network website

Hypothermia: Reversible Causes of Cardiac Arrest – Ausmed

Hypothermia occurs when the body temperature drops below 35°C, with primary hypothermia caused by extreme cold and secondary hypothermia linked to acute events or illness.

Learn more on Ausmed website

Remember to always monitor your child’s temperature and seek medical advice if necessary. Stay informed and prepared to effectively manage fevers and other related conditions.

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