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HealthInfo Canterbury

Asthma tests & diagnosis for children

Unfortunately, asthma can be difficult to diagnose, especially in young children. This is because symptoms can change depending on various factors. Also, common asthma symptoms can often have other causes.

Diagnosing asthma in a child may take more than one visit because of the way the symptoms come and go.

To help diagnose asthma, your doctor may ask you questions about your child's symptoms, such as:

They may also ask you about:

Your doctor may examine your child's chest and lungs, and they may check their height and weight to make sure they are growing normally. Your doctor may also suggest:

Other tests

Some other tests may be needed but this is usually only if your doctor is not sure if your child has asthma.

On the next page: Living with a child diagnosed with asthma

Written by HealthInfo clinical advisers. Last reviewed May 2017. Last updated May 2019.

See also:

Preparing for your doctor's visit

Page reference: 5533

Review key: HIASC-12638