How to Tell If Your Child Has the Flu: Key Warning Sign

What is the Flu in Children?

The flu, also called influenza, is a common illness in children. It is caused by a virus that spreads easily from person to person. Because kids often play close together, they can catch the flu quickly. The flu can make children feel very sick, but most recover with rest and care. However, some kids may need medical help, especially if they are very young or have other health problems.

Common Symptoms of Flu in Kids

Knowing the signs of influenza in kids helps parents act fast. While symptoms can vary, most children with the flu will have several of these signs:

High fever, often above 101°F (38.3°C)

Chills and shivering

Cough, which may be dry or wet

Sore throat

Runny or stuffy nose

Body aches or muscle pain

Headache

Feeling very tired or weak

Loss of appetite

Sometimes, vomiting or diarrhea (more common in younger children)

Usually, these flu symptoms in children come on quickly. For example, a child may feel fine in the morning but develop a fever and aches by the afternoon.

How Flu Symptoms Differ from a Common Cold

Sometimes, it is hard to tell if your child has the flu or just a cold. However, there are some key differences. The flu often starts suddenly, while a cold comes on slowly. In addition, the flu usually causes a high fever and body aches. On the other hand, a cold may only cause a mild fever or none at all.

Flu: Sudden high fever, chills, aches, and tiredness

Cold: Gradual onset, mild fever, runny nose, and sneezing

Because flu symptoms in children can be severe, it is important to watch for changes. If your child seems much sicker than with a usual cold, the flu may be the cause.

When to Seek Medical Help

Most children with the flu get better at home. However, some signs mean you should call a doctor right away. Early help can prevent serious problems. Watch for these warning signs:

Fast or troubled breathing

Bluish lips or face

Severe chest pain

High fever that does not go down

Seizures or convulsions

Not waking up or not interacting

Dehydration (no tears when crying, dry mouth, or not urinating)

Flu symptoms that get better but then return with worse fever or cough

If your child is under 5 years old, or has asthma, diabetes, or other health issues, contact your doctor sooner. Quick care is important for these children.

Prevention Tips for Parents

While you cannot always stop the flu, you can lower your child’s risk. Here are some helpful tips:

Get your child a yearly flu vaccine

Teach your child to wash hands often with soap and water

Remind your child not to touch their face, nose, or mouth

Keep your child away from people who are sick

Clean and disinfect toys and surfaces often

Encourage your child to cover coughs and sneezes with a tissue or elbow

Because the flu spreads easily, these steps help protect your family and others.

If you suspect your child has the flu, consult a pediatrician for personalized advice.