Childhood Apraxia of Speech
How Common Is Childhood Apraxia of Speech?
Childhood Apraxia of Speech is uncommon, affecting roughly 1 to 2 children in every 1,000, and is seen more often in boys and alongside some other developmental conditions. It is one of the harder speech difficulties to diagnose, so assessment by a speech-language therapist over more than one visit matters. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.
When words feel just out of reach for your child, knowing how many other families walk this path can be quietly reassuring — you are far from alone.
In short
Childhood Apraxia of Speech (CAS) is considered an uncommon speech difficulty. Most estimates suggest it affects roughly 1 to 2 children in every 1,000 — so while it is far less common than everyday speech delays, it is a real and recognised condition with skilled, effective support available. It appears somewhat more often in boys, and is also seen more frequently in children who have other developmental or genetic conditions.Understanding the numbers
CAS is a motor speech difficulty — the brain has trouble planning and coordinating the precise muscle movements needed for clear speech, even though the child knows exactly what they want to say. Because of this, many children who are first thought to have CAS turn out, after careful assessment, to have a different kind of speech delay — and the reverse is also true. This is why the exact figure varies between studies.A few helpful points to hold in mind:
- It is uncommon, not rare — around 1–2 in 1,000 children is the most widely cited estimate.
- It is seen more often in boys than girls.
- It can occur alongside other conditions, such as certain genetic differences or broader developmental needs, as well as entirely on its own.
- A confident diagnosis takes time — CAS is one of the trickier speech difficulties to identify, and is best assessed by a speech-language therapist over more than one visit.
What matters far more than the statistic is that CAS responds well to the right kind of speech therapy — frequent, motor-focused practice that helps the brain and mouth learn to work together.
When to seek a check
Consider a speech-language check if your child says very few words for their age, is hard to understand even for family, struggles to imitate sounds or words, or seems to grope or search for how to move their mouth when trying to speak. Early support helps — you do not need a diagnosis to begin.The Pinnacle way
A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care — never from an app or an online figure. From there your child receives a precise speech profile through a clinician-administered structured assessment, and a plan built around motor-speech practice via our speech therapy support. You can also [explore how we help families](/) across 70+ centres.Trusted sources
American Speech-Language-Hearing Association (ASHA) guidance on Childhood Apraxia of Speech and its estimated prevalence; American Academy of Pediatrics (HealthyChildren.org) guidance on speech and language development.Next step — Wondering whether your child's speech needs a closer look? Book a speech assessment with a Pinnacle clinician.
This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.
What to watch
Watch for very few words for your child's age, speech that is hard to understand even for family, difficulty imitating sounds or words, and visible groping or searching of the mouth when trying to speak — these signal it is worth a speech-language check.
Try this at home
Turn everyday moments into playful sound practice — repeat a simple word together slowly, exaggerate the mouth movements, and celebrate every attempt rather than correcting, so your child stays motivated to keep trying.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10
This is general information, not a diagnosis. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care.
Frequently asked
How common is Childhood Apraxia of Speech?
CAS is considered uncommon, with most estimates suggesting it affects roughly 1 to 2 children in every 1,000. It is far less common than ordinary speech delays but is a recognised condition with effective support.
Is CAS more common in boys or girls?
It is seen somewhat more often in boys than in girls. It can occur on its own or alongside other developmental or genetic conditions.
Why do prevalence figures for CAS vary?
CAS is one of the harder speech difficulties to identify, and children first thought to have it sometimes turn out to have a different speech delay (and vice versa). This is why a speech-language therapist usually assesses over more than one visit.
Does CAS respond to therapy?
Yes. CAS responds well to frequent, motor-focused speech therapy that helps the brain and mouth learn to coordinate the movements needed for clear speech. Early, regular support helps most.