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Fever and Persistent Fever

Also known as: High temperature, Ongoing fever, Recurrent fever Specialty: Infectious Disease

Overview

Fever is a common sign that the body is responding to infection, inflammation, or another medical condition. In many cases, fever improves as the underlying illness resolves. However, persistent or recurring fever may require further assessment to identify the cause.

Fever can occur alongside respiratory symptoms, digestive problems, body pain, fatigue, or other general symptoms. While some causes are mild and temporary, others may require medical treatment or closer monitoring.

Early evaluation is important when fever is prolonged, severe, or associated with worsening symptoms.

Symptoms

Symptoms may vary depending on the underlying cause. You may experience:

  • Elevated body temperature
  • Chills or sweating
  • Fatigue or weakness
  • Headaches or body aches
  • Loss of appetite
  • Symptoms related to infection, such as cough or stomach upset

Some people may also experience dehydration or difficulty carrying out normal activities.

Causes & Risk Factors

Fever can result from a wide range of infections or inflammatory conditions. You may be at higher risk if you:

  • Have respiratory or digestive infections
  • Have weakened immunity
  • Have chronic medical conditions
  • Are exposed to infectious illnesses
  • Delay treatment for ongoing symptoms

These factors can increase the likelihood of persistent or more severe illness.

When to Seek Care

You should seek medical advice if you:

  • Have fever lasting several days
  • Experience recurring or unexplained fever
  • Develop weakness, dehydration, or worsening symptoms
  • Have fever associated with cough, breathing problems, or digestive symptoms

Emergency Symptoms

Prevention

You can help reduce the risk of infection-related fever by:

  • Practising good hygiene and handwashing
  • Seeking early treatment for infections
  • Staying up to date with recommended vaccinations
  • Maintaining good hydration and nutrition
  • Avoiding close exposure to infectious illness where possible

Diagnostics Used

To assess fever and persistent fever, your care team may use:

Support Services

Managing fever focuses on treating the underlying cause and supporting recovery. You may benefit from:

  • Medication and symptom management
  • Hydration and recovery support
  • Monitoring and follow-up care
  • Referral for specialist evaluation where needed

This approach helps support recovery and reduce complications.

FAQs

What causes fever?
Fever is commonly caused by infection, but it may also occur with inflammation or other medical conditions.
When is fever considered persistent?
Fever that lasts several days or keeps recurring should be medically assessed.
Can fever occur without infection?
Yes. Some inflammatory or medical conditions may also cause fever.
Will I need tests for persistent fever?
Your care team may recommend laboratory tests or imaging to identify the underlying cause.
When should fever be treated urgently?
Urgent care is needed if fever is associated with breathing difficulty, confusion, severe pain, seizures, or worsening weakness.
Get in Touch

Take charge of your health today.

Speak to a Nakasero specialist this week — or call our 24/7 line if you need care right now.

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