Health condition
Faltering growth
Faltering growth means your child is gaining weight more slowly than expected for their age - most cases reflect feeding and intake issues rather than disease, but a structured assessment rules out the medical causes.
Why trust this guide
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Editorial team
Written by our editorial team from the UK sources listed on each page.
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Sourced from guidance
Checked against current NHS and UK specialist society guidance at the time of review.
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Current for 2026
Reviewed on 2026-09-27 with the next review scheduled for 2027-09-27.
Key facts
The essentials at a glance.
The symptoms to recognise, when to seek help, which specialist to see, and what treatment usually involves.
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Diagnosis is made from the growth chart: weight crossing down through centile lines, not a single measurement
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Common causes are feeding difficulties, restricted intake or family stresses; medical causes include coeliac disease, reflux, allergy and chronic illness
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Assessment includes a feeding history, examination, growth review and targeted tests such as coeliac screening and urine checks
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Specialist: a consultant paediatrician, usually with a dietitian and health visitor working together
Understanding the condition
What it is and what happens next.
What causes it, how it is diagnosed, and the treatment routes available in the UK.
What it is and how it feels
Few things worry parents like a baby or toddler drifting down the growth chart, and the anxiety is often compounded by conflicting advice. Faltering growth is a pattern over time - weight falling across centile spaces - rather than any single weigh-in, and the majority of cases come down to energy in: feeding difficulties, a limited diet, excessive juice or milk crowding out food, or a child of naturally slighter build being compared with heavier peers.
Diagnosis and treatment routes
A paediatric assessment reviews the whole growth trajectory alongside the feeding story from birth, examines your child, and uses a focused set of tests - typically coeliac screening, blood counts, and urine testing - rather than a scattergun of investigations. Management pairs a dietitian-led plan to increase energy intake with treatment of anything found, and most children respond well; ongoing weight monitoring confirms the curve turning upwards. In many parts of the UK, routine NHS referrals for this kind of problem currently take 20-45+ weeks, whereas an initial appointment with a private consultant is typically available within around two weeks.
Seeing a specialist
Who to see, and how quickly you can be seen.
The specialist for this condition is usually a consultant paediatrician. Your GP can refer you on the NHS, or you can arrange a private consultation directly.
A quiet reminder
This guide is for information, not medical advice.
Your GP knows your history and can tell you which parts apply to you. If in doubt, see them - and seek urgent care for any of the emergency symptoms described above.
Frequently asked
Common questions about Faltering growth.
Quick, plain-English answers to what people ask us most.
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What does faltering growth mean?
Faltering growth is a condition your doctor may diagnose based on your symptoms, medical history and, where needed, examination or test results. Understanding exactly how it applies to your situation is best done with a clinician who can look at your full picture rather than relying on general information alone.
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What are the risk factors for faltering growth?
The exact cause of faltering growth can involve a mix of genetic, environmental and lifestyle factors, and it isn't always possible to pin down a single trigger. A specialist assessment can help identify any modifiable risk factors relevant to you.
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What are the symptoms of faltering growth?
Symptoms of faltering growth vary from person to person and can range from mild and easily missed to significant enough to affect daily life. Because overlapping conditions can produce similar symptoms, a clinical assessment is the most reliable way to confirm what's actually going on.
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Is faltering growth serious or dangerous?
Most cases of faltering growth are manageable with appropriate care, though, like many conditions, it can occasionally lead to complications if left unassessed or untreated. Your clinician can give you a realistic sense of the risks based on your specific presentation.
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Does faltering growth run in families?
In most cases faltering growth isn't straightforwardly inherited, though family history can sometimes be a relevant background factor. A clinician can help you understand whether it's worth mentioning relatives' health when being assessed.
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Can faltering growth be treated or prevented?
Faltering growth can often be managed effectively, and in some cases prevented or reversed, with the right combination of lifestyle changes, medication or other targeted treatment. A specialist will tailor the approach to your circumstances rather than applying a one-size-fits-all plan.
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What treatment options are available for faltering growth?
Management of faltering growth is individualised, ranging from conservative measures and monitoring through to more active medical or surgical treatment depending on how it's affecting you. A clear diagnosis is the first step towards choosing the right approach.
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How long does faltering growth last?
The outlook for faltering growth varies widely depending on the underlying cause, how early it's diagnosed, and how it responds to treatment. Many people see significant improvement with appropriate care, and your specialist can give you a more personalised timeframe once they've reviewed your case.
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What else could faltering growth be mistaken for?
Because several conditions can share similar symptoms to faltering growth, clinicians often consider a short list of possibilities before confirming a diagnosis. This is one of the main reasons a proper assessment, and sometimes targeted tests, matters more than relying on symptoms alone.
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When should I see a doctor about faltering growth, and how quickly can I be seen privately?
It's worth seeking medical advice if symptoms of faltering growth are persistent, worsening, or affecting your daily life, rather than waiting for them to resolve on their own. NHS routine referrals for this kind of assessment can take anywhere from around 20 to 45+ weeks, whereas private consultants typically offer an appointment within about two weeks.