Fever In Children

Fever In Children

Everything you need to know about Fever In Children - symptoms, causes, treatment options available in Australia, and when to see a doctor. Evidence-based medical information.

Dr. Louis J Sisk
Dr. Louis J Sisk
BSc(Hons) MBChB MRCS(Glasg) MTrauma
Published: August 23, 2025

Fever In Children: Australian Health Information

Table of Contents


What You Need to Know - The Basics

Fever in children means their body temperature is higher than normal, like when a car engine gets too hot.

The main things to know:

  • Children with a fever often feel hot, sweaty, and tired.
  • Fevers are most common in young kids and babies.
  • Most fevers are not serious and can be treated at home.
  • A fever usually means the body is fighting an infection, like a cold or flu.

When to see a doctor immediately: If your child is very sleepy, has trouble breathing, a rash that doesn’t fade when pressed, or if they have a fever lasting more than a few days.

Most fevers can be managed with rest and fluids, and your child will feel better soon.


Overview

Fever in children is a common clinical presentation characterised by an elevation in body temperature, typically defined as a rectal temperature of ≥38.0°C or an axillary temperature of ≥37.5°C [1]. It is a physiological response to infection, inflammation, or other underlying conditions, mediated by the hypothalamus in response to pyrogens. These pyrogens can be endogenous, such as cytokines released during inflammation, or exogenous, like bacterial toxins. The pathophysiological mechanism involves the release of prostaglandins, which act on the hypothalamus to raise the body's set-point temperature [2].

In Australia, fever is a prevalent symptom among children, often associated with respiratory infections. The 2024 Annual Australian Respiratory Surveillance Report indicates that the prevalence of fever and cough symptoms remains consistent with previous years, highlighting the need for effective management and understanding of this condition [1].


Statistics and Prevalence in Australia

Fever in children is a significant health concern in Australia, with a consistent prevalence observed over recent years. According to the 2024 Annual Australian Respiratory Surveillance Report, approximately half of the participants in the FluTracking study reported new fever and cough symptoms, mirroring trends from 2023 and the five-year historical average [1]. Acute rheumatic fever (ARF) continues to be a critical issue, particularly among First Nations children aged 5–14, underscoring the importance of targeted healthcare interventions in these populations [3].


Symptoms and Clinical Presentation

The clinical presentation of fever in children can vary widely. Early symptoms typically include a general feeling of malaise, irritability, and decreased appetite. As the fever progresses, children may exhibit flushed skin, sweating, and increased heart rate. In some cases, fever can lead to febrile seizures, particularly in children aged 6 months to 5 years [2].

Red flag symptoms that necessitate immediate medical attention include persistent high fever, difficulty breathing, rash, lethargy, and signs of dehydration such as dry mucous membranes and reduced urine output. It is crucial for caregivers to recognise these symptoms and seek prompt medical evaluation [2].


Causes and Risk Factors

Fever in children can be attributed to a variety of causes, with infections being the most common. Viral infections, such as influenza and respiratory syncytial virus (RSV), are frequent culprits. Bacterial infections, including urinary tract infections and pneumonia, are also significant contributors [2].

Risk factors for developing fever include age, with younger children being more susceptible due to their developing immune systems. Environmental factors, such as exposure to infectious agents in daycare settings, and underlying chronic conditions can also increase the risk of fever [2].


Diagnosis

The diagnosis of fever in children involves a comprehensive clinical assessment, guided by Australian medical guidelines. For infants under 3 months, any fever above 38.0°C warrants immediate medical evaluation to rule out serious infections [1]. Axillary temperature measurement is recommended for infants, while tympanic temperature is suitable for older children [1].

Diagnostic approaches may include laboratory investigations, such as complete blood counts and urinalysis, to identify underlying infections. In certain cases, imaging studies like chest X-rays may be necessary to assess for pneumonia or other complications [2].


Treatment Options in Australia

The management of fever in children focuses on addressing the underlying cause and providing symptomatic relief. First-line treatment typically involves the use of antipyretics, such as paracetamol or ibuprofen, to reduce fever and discomfort [2]. It is essential to adhere to dosing guidelines to avoid potential side effects.

Non-pharmacological strategies, including ensuring adequate hydration and maintaining a comfortable environment, are also important components of fever management. In cases where bacterial infections are identified, appropriate antibiotic therapy may be required [2].

Australian healthcare guidelines, including those from the National Health and Medical Research Council (NHMRC), provide detailed recommendations for the management of fever in children, ensuring evidence-based care across the country [2].


Living with Fever In Children

Managing fever in children involves not only addressing the acute episode but also implementing strategies to prevent recurrence and optimise overall health. Caregivers should be educated on recognising early symptoms and red flags, as well as the importance of maintaining up-to-date vaccinations to prevent infectious diseases [2].

Managing this condition is an ongoing process, but many people learn to live well with proper support and care.

Daily management:

  • Follow your treatment plan as prescribed
  • Keep track of your symptoms and how you're feeling
  • Stay in regular contact with your healthcare team
  • Learn about your condition so you can make informed decisions

Building your support network:

  • Talk to family and friends about your condition
  • Consider joining support groups
  • Work with healthcare professionals who understand your needs
  • Don't hesitate to ask for help when you need it

Self-care strategies:

  • Maintain healthy lifestyle habits where possible
  • Manage stress and get adequate rest
  • Stay as active as your condition allows
  • Focus on activities and relationships that bring you joy

Important: With proper management and support, many people with this condition live full and active lives.

Regular follow-up with healthcare providers is crucial, particularly for children with recurrent fevers or underlying health conditions.

This ensures ongoing keeping track and timely treatment if complications arise [2].


Prevention

Preventative measures play a vital role in reducing the incidence of fever in children. Vaccination is a cornerstone of prevention, offering protection against common infectious diseases such as influenza and pneumococcal infections [2]. Additionally, promoting good hygiene practices, such as regular handwashing and avoiding close contact with sick individuals, can help minimise the spread of infectious agents [2].


Key Takeaways

• Fever In Children is a medical condition that can be effectively managed with proper diagnosis and treatment from healthcare professionals. • Treatment options are available in Australia through Medicare and PBS, making care accessible and affordable for most people. • Early detection and appropriate management can significantly improve outcomes and quality of life for people with this condition.


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References

  1. Source: health.gov.au
  2. AIHW Health of children
  3. AIHW Indigenous Health Performance Framework — ARF and RHD

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This article provides evidence-based medical information. Always consult qualified healthcare providers for medical concerns.