the Picture Exchange Communication System (PECS)
Risks and side effects of PECS
PECS is a low-risk, well-tolerated communication system with no medical side effects. The main considerations are about practice — consistent use across people, progressing through its stages, and always pairing it with spoken-language goals. Evidence shows it does not delay speech and often encourages it. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.
PECS gives a child who isn't yet speaking a real, immediate way to ask for what they want — and a gentle worry many parents have is whether it could hold back talking. The reassuring news is that, used well, it doesn't.
In short
The Picture Exchange Communication System (PECS) is a low-risk, well-tolerated way to help a child communicate by handing over a picture to make a request. It has no medical side effects — it isn't a medicine or a procedure. The main thing to watch for is how it's used: PECS works best when delivered by a trained therapist with consistent family support, always alongside spoken-language goals. Importantly, research and clinical experience show PECS does not stop a child learning to talk — for many children it actually encourages speech.What to be mindful of
PECS itself is safe. The "risks" are really about practice and expectations, and they're easy to manage:- The myth that it delays speech. This is the worry parents raise most. Evidence does not support it — giving a child a successful way to communicate tends to reduce frustration and can open the door to spoken words. PECS is designed to be paired with verbal modelling throughout.
- Inconsistent use across people and places. If only one person uses PECS, the child may communicate only with them. Everyone around the child — family, school, therapists — needs to respond to the pictures the same way.
- Stopping too early or staying static. PECS moves through stages, from a single picture to building sentences and commenting, not just requesting. A child can get "stuck" if the system isn't progressed as their skills grow.
- Over-reliance without a plan to grow. PECS is a bridge, not a ceiling. A good plan keeps building towards richer communication, including speech or other systems as appropriate.
- Mild early frustration. When first learning the exchange, some children show brief frustration — this settles quickly with the right prompting and is far less than the frustration of not being understood at all.
None of these are reasons to avoid PECS — they're reasons to use it with trained guidance.
When to seek guidance
If your child is using pictures but progress has stalled, if communication only happens with one person, or if you're unsure whether PECS is the right fit alongside speech goals, a review with a speech-language therapist helps. A clinician can match the communication approach to your child's strengths and keep it growing.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 form. Our therapists introduce PECS as part of a broader speech therapy plan, always pairing pictures with spoken-language modelling and coaching you to use it confidently at home. Understand how your child's communication profile is assessed, and explore how we [support every family](/) on this journey.Trusted sources
American Speech-Language-Hearing Association (ASHA) guidance on augmentative and alternative communication; American Academy of Pediatrics family resources (HealthyChildren.org) on supporting communication; WHO ICD-11 developmental framework.Next step — Wondering if PECS is right for your child? Book a developmental assessment with a Pinnacle speech-language 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 PECS being used by only one person, progress that has stalled at the single-picture stage, or brief early frustration while your child learns the exchange — all manageable with trained support.
Try this at home
Whenever your child hands you a picture, say the word warmly as you give them what they asked for — pairing pictures with spoken words turns PECS into a stepping stone towards talking.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10 · reviewed every 365 days
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
Will PECS stop my child from learning to talk?
No. This is the most common worry, and the evidence is reassuring — PECS does not delay speech. By giving your child a successful way to communicate, it reduces frustration and for many children actually encourages spoken words. It is always used alongside verbal modelling.
Does PECS have any medical side effects?
No. PECS is not a medicine or a procedure — it's a way of communicating using pictures, so it carries no medical side effects. It is one of the safest and most widely used communication supports.
Can my child become too dependent on the pictures?
PECS is designed as a bridge, not a permanent ceiling. A good plan keeps progressing — from single pictures to sentences and commenting — and continues building towards richer communication, including speech where appropriate. Over-reliance only happens if the system isn't progressed.
What makes PECS work well?
Consistency and trained guidance. When everyone around the child — family, school, therapists — responds to the pictures the same way, and a therapist progresses the stages as skills grow, PECS becomes a powerful, low-risk communication tool.