screening for child fever

Overview

A fever is a temporary rise in body temperature, usually caused by an infection. Checking your child's temperature and watching how they behave helps you decide when to seek medical advice.

Yes. Fever is one of the most common reasons parents seek medical care for a child.

It can affect children of all ages, but careful checking is especially important for babies under 6 months.

Symptoms

Common symptoms

• Forehead or back feels hot to the touch
• Flushed or red cheeks
• Shivering or sweating
• Feeling irritable or restless
• Loss of appetite

Symptoms in children

• All the common symptoms above
• Possible cough, runny nose, or sore throat
• Earache or pulling at the ears
• Vomiting or diarrhea
• A rash, which should always be checked

Symptoms in older adults

• For older children and teenagers, fever may also come with headache, muscle aches, or sensitivity to light. They can usually tell you how they are feeling.

Causes

Main causes

• Viral infections, such as colds, flu, or childhood illnesses like chickenpox
• Bacterial infections, such as ear infections, urinary tract infections, or pneumonia
• Vaccination side effects
• Teething, which can cause a slight rise in temperature
• Overheating from being wrapped in too many layers
• More rare causes include inflammatory conditions or autoimmune disease

Risk factors

• Being under 6 months old
• Recent vaccination
• Contact with someone who has an infection
• Not being fully immunized
• Underlying health conditions that weaken the immune system

When to see a doctor

See a doctor urgently if:

• Your child is under 3 months old and has a temperature of 38°C or higher
• Your child is 3–6 months old with a temperature of 39°C or higher
• Your child looks unwell, is unusually sleepy, or is not feeding normally
• The fever does not go away after a few days

Book a routine appointment if:

• Mild fever with no other symptoms
• Your child is drinking, eating, and playing normally
• Low-grade temperature after recent vaccination

Diagnosis

A healthcare provider will ask about your child's symptoms, how you measured the temperature, and how long the fever has lasted. They will also examine your child.

Tests that may be done

• Accurate temperature measurement (using a recommended thermometer)
• Physical examination, checking ears, throat, lungs, and skin
• Urine test (in young children, to check for a urine infection)
• Blood tests or throat swab if a specific infection is suspected

What to expect at your appointment

The doctor will explain what might be causing the fever and give you a clear plan for home care. Depending on the findings, they may recommend tests or a follow-up visit.

Treatment

The main goal is to keep your child comfortable and ensure they get enough fluids. Fever-fighting medications can help, but they do not treat the underlying cause. Use them only if your child is in discomfort, and always check the right dose with your doctor or pharmacist.

Self-care at home

• Dress your child in light clothing and keep the room at a comfortable temperature
• Offer plenty of fluids — for babies, breast milk or formula; for older children, water or clear soups
• Let your child rest, but do not force bed rest
• Check your child's temperature when they seem unwell or feel hot
• Do not wrap a feverish child in heavy blankets
• Do not use cold baths, ice, or alcohol rubs — these can be dangerous

Medical treatments

If a bacterial infection is diagnosed, an antibiotic may be prescribed. Antibiotics do not fight viral infections. Fever-reducing medications are available, but they should be used only after talking to a pharmacist or doctor, and always following the age-specific dosing instructions.

When is surgery considered?

Surgery is not used to treat fever itself. In rare cases, fever can come from a condition that needs surgery, such as appendicitis, and that condition will be treated separately.

Living with this condition

Keep your child home from school or nursery until they are well enough to take part in normal activities and have been fever-free for at least 24 hours (without using fever-reducing medication). During this time, keep them comfortable and check temperature periodically.

Lifestyle tips

• Wash your hands often and teach older children to do the same
• Keep children's vaccinations up to date
• Use a trusted thermometer and learn how to use it correctly
• Avoid sharing cups, bottles, and utensils

Diet and exercise

Offer small, frequent sips of fluid rather than forcing big drinks. If appetite returns, start with light foods like toast, bananas, or rice. Gentle play is fine as energy returns, but avoid full activity until the fever has resolved.

Mental health and emotional wellbeing

Looking after a feverish child can be exhausting and worrying. It is normal to feel anxious. Take breaks, ask for help from family or friends, and remember that you are doing a good job.

Prevention

Not always. Many fevers are caused by viruses and bacteria that spread from person to person. Good hygiene and vaccination are the best ways to reduce the chance of your child getting sick.

Vaccines

Vaccinations protect against many serious illnesses that cause fever, including measles, chickenpox, and pneumococcal disease. Follow the immunization schedule recommended in your country.

Screening programmes

You can screen for fever at home by checking your child's temperature when they feel hot, seem unwell, or show other symptoms. Routine daily temperature checks are not needed in a healthy, well child.

Complications

If left untreated

• Dehydration from poor fluid intake
• Febrile seizure (a convulsion caused by high fever, mostly harmless but frightening)
• In serious cases, sepsis if a bacterial infection spreads through the body

Long-term outlook

The outlook for a child with fever is very good. Most fevers settle on their own within a few days, and with simple care and proper medical guidance when needed, nearly all children recover completely.

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