Getting an asthma diagnosis for your child

If you’ve been told your child might have asthma, you’re in the right place for support and advice.

VIDEO: Watch asthma nurse, Debby Waddell explain how children are diagnosed with asthma. 

Parents often tell us they feel confused or frustrated when they’re told their baby or child has ‘suspected asthma’ and wonder why the GP can’t just say it’s asthma. Even though getting an asthma diagnosis can take time, particularly if your child is under five, you can help your GP work towards either confirming a diagnosis or ruling one out. 

What does suspected asthma mean?

If your GP’s told you that your child has ‘suspected asthma’, it means they think asthma is a strong possibility, but because of your child’s age they can’t give a definite diagnosis now.

This is because asthma symptoms come and go, and because there are lots of other reasons why very young children cough and wheeze, including colds and viral infections.

For parents this can be a frustrating time, but it’s worth remembering that your child’s GP is following a recommended process to make sure your child gets the right diagnosis.

On the positive side being told your child has suspected asthma usually means you’re further along the road in terms of getting a diagnosis, and hopefully closer to getting the right treatments to help your child with their symptoms.

“We were in and out of hospital when Oliver was a baby and when they said they didn’t know if it was asthma, I felt like I wasn’t being listened to or taken seriously. I was also really scared that he might have something a lot worse, something that isn’t manageable. If only the doctors had explained it wasn’t possible to diagnose asthma in such a young child, and that it’s a long process, it would have saved me a lot of stress.”

 Alexa, mum to Oliver, 11.

What the GP will do if they suspect your child has asthma

Asthma tests

If your child’s five or older, their lungs, co-ordination and understanding are probably well developed enough for them to take tests to measure how well their lungs are working, for example spirometry. The results of these tests will allow the GP to diagnose or rule out asthma.  

If your child is very young (under five), it’s difficult to measure how well their lungs are working because the tests that can do this aren’t suitable for small children. This means your GP may say your child has ‘suspected asthma’ for several months, or even a few years, before they can confirm or rule out a diagnosis of asthma. If this is the case your GP will decide to monitor your child, using either a ‘watch and wait’ approach or a trial of treatment.

‘Watch and wait’

If your child only has symptoms very rarely the GP will suggest a 'watch and wait' approach. They might prescribe a reliever inhaler for your child to take when they do get symptoms. This allows your GP to see if symptoms come back, and if they follow any pattern.

Although it may feel like you’re in limbo, it’s actually a very useful stage because it gives your GP time to understand your child’s symptoms and triggers and help your child get the best care. During this time, your child might be referred to an asthma nurse in your local GP surgery so you can get extra help and support.

Trial of treatment

“Gabriel developed a night-time cough when he was 18 months old. Although he wasn’t given an official diagnosis of asthma at that point, he was given a blue Ventolin inhaler.”

 Anna, mum to Gabriel, 10

If your GP suspects asthma, they may want to try some asthma medicines for eight weeks to see if they help with your child's symptoms. This is known as a 'trial of treatment'. After the eight weeks they'll ask you to bring your child back in to see how the medicines have worked:

  • If the medicines didn't help symptoms, even though your child was taking them regularly and in the right way, your GP will consider other diagnoses that might be more likely.
  • If the medicines did seem to work, your GP will suggest you stop the treatment for a time to see if symptoms come back. 
  • If symptoms do come back it means it's very likely your child has suspected asthma. Your child can continue on asthma medicines until they are able to do asthma tests. 

Some parents worry about giving their child asthma medicines, especially before their child has a definite diagnosis. It might help to know that your child will be prescribed the lowest dose possible to help them stay symptom-free. Even if it turns out your child doesn’t have asthma, the doses of medicines prescribed are very unlikely to cause side effects.

If your child’s old enough and able to use a low-range peak flow meter, your GP or asthma nurse may ask you to keep a peak flow diary to see how well their lungs are working over a period of time. Getting a clear result over time does depend on how well your child can use the peak flow meter, and if they're blowing into it with the same amount of effort every time, so it's not always reliable. Also, a normal result doesn’t necessarily mean it’s not asthma -  which is why monitoring your child's symptoms is also important.

What happens after a trial of treatment?

If your child’s symptoms get better after their trial of treatment, it shows they’re more likely to have asthma. Your child’s GP or asthma nurse will probably continue the treatment and your child will be monitored to make sure they’re taking the lowest dose needed to manage their symptoms. As soon as your child is able they will be offered tests to confirm the asthma diagnosis. 

If your child’s GP or asthma nurse thinks your child might have severe asthma, your child will be referred to a specialist doctor. They will explain what tests and treatment your child will need, and how you can help to manage their symptoms.

How you can help the diagnosis process along

Try to attend all your child’s follow-up appointments so you can talk about how your child’s been. This is also a chance for the GP or asthma nurse to review your child’s medicines and make sure they’re on the lowest dose possible to keep them well.

As a parent, there’s a lot you can do to help your child’s GP come to a diagnosis. For example:

Track your child’s symptoms

You can help your child’s GP or asthma nurse build a picture of your child’s asthma by keeping a symptom diary or calendar. Note down the dates and times you notice symptoms and what triggered them such as exercise, petting the family dog, or being in the park. If your child’s been given a peak flow meter to use, write down the results next to the symptoms they had on that day.

Give your child their medicines as prescribed

The results of your child’s trial of treatment will be much more useful if your child’s taken the right dose of treatment at the right times every day. So stick to a good routine and make sure your child isn’t skipping doses.

Make sure your child knows how to use their inhalers and spacers properly

Ask your child’s GP or asthma nurse, or a pharmacist to show you the correct technique. Even a small tweak to the way your baby or child takes their inhaler can make a difference to how much medicine gets down into their lungs where they need it. It’s a good idea to watch your child take their inhalers so you can make sure they’re taking them in the right way.

Download and share a written asthma action plan

Written asthma action plans give you step-by-step instructions for giving your child their asthma medicine and what to do if you notice your child’s symptoms are getting worse, or if they have an asthma attack. You can also help everyone who cares for your child feel confident by giving them copies of the asthma action plan (we recommend taking a photo on your phone and sharing it). Your child’s GP or asthma nurse will fill out the action plan with you. 

We know from calls to our Helpline that parents worry other people won’t understand what ‘suspected asthma’ is or take it seriously because it’s ‘not asthma yet’. Sharing your child’s asthma action plan with family and anyone looking after you child will help them understand that your child is being treated for something, even though they don’t have an official diagnosis yet.

Getting support and looking after yourself

The whole process of getting a diagnosis for your child can really take it out of you, making you more emotional than usual. It might help to:

Try not to worry

It can often take time for a child to get a definite diagnosis of asthma, so your child may be in the ‘suspected asthma’ phase for a long while. This is especially common for babies, toddlers and younger children and for children with difficult or severe asthma. This doesn’t mean your healthcare professionals aren’t doing their job - just that the process they’re going through takes time.

“If you can find a way to accept and come to terms with the ‘suspected asthma’ phase, and let go of any anxiety about how quickly you can rule asthma in or out, it can really help you and your child make the most of life during this time.”

 Debby Waddell, Asthma Nurse Specialist

How are children diagnosed with asthma?

Asthma UK Nurse Debby Waddell answers your common concerns about children being diagnosed with asthma.

Video: How are children diagnosed with asthma?

Asthma UK Nurse Debby Waddell answers your common concerns about children being diagnosed with asthma.
Transcript for ‘Your child’s asthma diagnosis’

0:04 When a parent first comes to me, thinking their child may have asthma,

0:08 I like to talk to them about what their child is feeling,

0:12 their symptoms, what they're experiencing, what they've noticed.

0:16 From this, I try to build up a picture. I look at their birth history. I ask them about their child's general health.

0:24 I also ask them if anyone in the family has asthma, eczema, or hay fever, because they are related.

0:31 It's really like a jigsaw puzzle, it's about putting all the pieces together and getting a really good history,

0:36 and that will really help me to decide whether the child has a possibility of having asthma.

0:42 If the child is old enough, I may ask them to do some tests, which will help me to confirm the diagnosis.

0:50 It can take a long while for asthma to be diagnosed in children because, very often,

0:55 parents will come to the healthcare professional, the doctor or nurse, saying that their child might be wheezing,

1:01 and there's a whole variety of reasons why children may wheeze. Around 30 per cent of young children will wheeze during their lifetime.

1:08 But very often, for the vast majority of them, that wheezing will stop before they go to school.

1:13 Parents will often come to see the doctor or the nurse worrying that their child is coughing

1:18 and children will often cough for a whole variety of conditions,

1:22 whether it be something caught in their throat, something irritating them,

1:27 whether it might be something dripping down the back of their throat at night when they're asleep.

1:32 There’s all sorts of reasons for a cough and that's why it takes a long while to diagnose asthma,

1:36 because we want to be really sure that that cough is asthma related and not something else.

1:41 It's sometimes difficult to diagnose asthma because symptoms come and go,

1:45 and the doctor wants to make really sure that they rule other possibilities out.

1:52 In younger children, it's especially difficult to diagnose asthma.

1:55 This is because, very often children under five aren't able to perform the tests that we like to do,

2:01 which helps us to confirm a diagnosis. It's much easier when they’re a little bit older.

2:09 If your GP tells you that your child has suspected asthma,

2:12 there is a possibility that your child does have asthma, but they don't really want to make a diagnosis until they're sure.

2:18 So, they'll work together with you to take some time to work through a process to either confirm or to rule out asthma.

2:26 If you're told your child has suspected asthma it can be really frustrating and confusing,

2:30 because very often it's natural to want immediate answers.

2:35 However, you can be rest assured that your GP or your practice nurse will be following a recommended process to reach the right diagnosis.

2:43 And it's good to remember that being told your child has suspected asthma is a good thing,

2:48 because it means you’re further along the road to being told that your child does have asthma

2:52 or doesn't have asthma and to receiving the right treatments.

2:59 When your child has suspected asthma, you may be told that it's best to watch and wait,

3:04 and that can be really frustrating once again, because we want immediate answers.

3:09 But the watching and waiting period is really helpful because it gives you time to think about your child’s symptoms,

3:15 to look at medication, to see what works, to see what doesn't.

3:22 You may be asked to carry out a trial of treatment and this could be quite frightening,

3:26 but what this actually means is that your child will be given one or two medicines to take home and to try,

3:33 and for you to really consider the effect that they have.

3:36 You may be asked to monitor how are they feeling for a couple of weeks and then asked,

3:41 invited back to the doctor's surgery to talk to your GP or practice nurse to see if they're any better.

3:46 And that can really help towards a diagnosis.

3:52 If you have any questions about your child's asthma or suspected asthma,

3:56 speak to your GP, your practice nurse, or call our friendly asthma nurse specialist on our helpline.

Related resources
Asthma and My Child booklet

Asthma and my child

This booklet explains how to help your child manage their asthma so they can get on with enjoying life.

Download (3 MB)

Watch more videos on looking after a child with asthma

Last updated July 2017