Fever means the body temperature is higher than usual. It is often linked to infection, but it can also happen with heat illness or inflammation, so a clinician may need to check the cause.
When to get emergency care
Get emergency help immediately if you have any of these:
Fever with confusion, fainting, seizure or extreme sleepiness.
Fever with stiff neck, severe headache or a rash that does not fade when pressed.
Fever with trouble breathing, chest pain or blue lips.
Fever with severe belly pain, repeated vomiting, bleeding from nose or gums, or very little urine.
Any fever in a baby younger than 3 months, during pregnancy, or in someone with weak immunity.
Inflammatory conditions that need medical assessment.
What to expect at your consultation
A clinician may ask about recent travel, contact with illness, cough, urine symptoms and rash.
They may check temperature, pulse, blood pressure and hydration.
Blood, urine or other tests may be advised if an infection needs to be identified.
Looking after yourself
Rest in a cool place and drink safe fluids if you can.
Keep a simple record of temperature and new symptoms.
Seek medical advice if fever is high, lasts more than a few days, or you are worried.
Frequently asked questions
Can a fever come from an infection picked up abroad?
Yes. Tell the clinician where you travelled and when you returned, because it changes what they test for. Severe belly pain, repeated vomiting or bleeding need urgent care.
Should I ignore fever if it comes down?
No. Fever that keeps returning, lasts more than a few days, or comes with red flags should be checked by a clinician.
Is fever always an infection?
No. Infection is common, but heat illness, inflammation and other conditions can also cause fever.
When should a child with fever be seen urgently?
Urgent care is needed for a very young baby, a child who is very sleepy, has breathing trouble, has a seizure, or shows dehydration.
Not sure how urgent this is?
Answer a few questions and we will tell you how soon to be seen.