Hearing your child say their first words is one of the most eagerly anticipated moments in parenthood, and when those words are taking longer than expected, it’s normal to worry about your child’s development. Parents often wonder whether delayed speech is an indication that their child has autism spectrum disorder (ASD), but there are several other reasons for delayed speech.
Learn what typical speech development looks like, how an isolated speech delay differs from ASD, and when a comprehensive evaluation is the appropriate next step.
Understanding Typical Speech and Language Development
When you’re worried about your child, the difference between speech and language may seem unimportant. But distinguishing between the two can give you a lot of valuable information about your child.
- Speech refers to the physical ability to produce words.
- Language refers to how we express ourselves and understand others; it’s about communication, not just producing sounds and words.
A child may have a speech delay, a language delay, or a delay in both.
Since children develop at different rates, pinpointing specific timelines for reaching milestones isn’t possible. That said, clinicians use developmental benchmarks that can provide a helpful frame of reference:
- By 12 months: Your baby should be babbling, gesturing (pointing, waving), and responding to their name.
- By 18 months: They should be using single words consistently and understanding simple requests.
- By 24 months: Toddlers at this age should have a vocabulary of roughly 50 words. They should be starting to combine two-word phrases such as “more milk.”
- By 36 months: Vocabulary is expanding rapidly at this age. They should speak in short sentences that can generally be understood by adults.
A child who misses one of these benchmarks is said to have a speech or language delay. However, a delay is not a diagnosis, and many late talkers catch up to their peers.
What Does a “Normal” Speech Delay Look Like?
If your child isn’t using words, but they’re communicating through other means and reaching other developmental milestones, they’re considered to have a standard speech delay. These children want to interact with their world; they just lack the verbal tools to do it through speech.
Children with a standard speech delay often have:
- Strong Non-Verbal Skills: A child who wants juice but can’t ask for it will lead you to the refrigerator, point to the juice, and look at you to make sure you understand.
- Intact Social Motivation: They desire interaction. They smile at you, seek your attention, play peek-a-boo, and show you their favorite toys.
- Good Imitation: They try to copy your actions, facial expressions, and sounds, even if they cannot replicate the words perfectly.
- Strong Receptive Language: They often understand far more than they can say. For example, if you ask them to get their shoes, they will go look for them.
It should be noted that children with a “normal” speech delay should still be evaluated by a clinician. Hearing loss or specific language disorders could be responsible, and early treatment can make a meaningful difference for your child.
When a Speech Delay May Signal Autism
ASD isn’t a speech disorder; it’s a neurodevelopmental condition that changes how someone interacts with other people and their environment. For children with ASD, delayed speech is caused by a fundamental difference in how they connect with other people.
Signs that a language delay may be part of a broader autism presentation include:
- Limited Social Reciprocity: Children with ASD often have reduced eye contact, don’t respond consistently to their name, and have little apparent interest in engaging with others.
- Limited Use of Gestures: A child with a standard speech delay will use gestures to communicate — for example, they may point to an airplane in the sky to say, “Look at that!” Children with ASD rarely use gestures to communicate.
- Unusual Language Patterns: Children with autism often repeat words or phrases out of context (echolalia), or recite scripts from shows instead of communicating needs.
- Repetitive Behaviors: You might notice hand-flapping, rocking, lining up toys, intense preoccupations, or a need for sameness — small changes in routine may cause significant distress.
- Differences in Play: Autistic children often show little interest in play or sharing enjoyment with others.
No single behavior on this list is conclusive, and a diagnosis requires a clinical evaluation of your child’s overall behavior patterns and communication preferences.
Why an Accurate Diagnosis Matters
Some parents might be tempted to take a wait-and-see approach to getting an ASD evaluation, hoping their child will grow out of their unique behaviors. However, in our 27 years of practice, we’ve consistently seen that an early ASD diagnosis helps both the child and the parents.
The toddler years are characterized by incredible brain growth and development. Getting an early ASD diagnosis allows treatment to begin when the brain is most adaptable, which is why early intervention is associated with stronger long-term outcomes.
Parents often find relief in a diagnosis too. Instead of being frustrated by their inability to communicate with their child, parents can begin to learn how their child prefers to communicate. In addition, state and federal law requires that children with diagnosed disabilities like ASD have access to services and accommodations, including state-run Individual Education Plans (IEPs) and school-based supports that are otherwise difficult to obtain.
If you suspect your child’s development is off track, don’t wait to see if they grow out of it. Seek a comprehensive evaluation to make sure your child gets the care they need.
How NeuroHealth Arlington Heights Can Help
Distinguishing an isolated speech delay from ASD requires more than a brief screening. Comprehensive pediatric neuropsychological testing examines language, social communication, cognitive abilities, and behavior to produce a comprehensive overview of your child’s development and a concrete plan for addressing it.
For more than 27 years, NeuroHealth Arlington Heights has provided neuropsychological testing and diagnosis for autism, ADHD, learning disabilities, and related conditions for families throughout the Chicagoland area. Our team also offers school advocacy and consultation for academic accommodations, ensuring that a diagnosis translates into meaningful support in the classroom. While we don’t prescribe medication, we provide referrals when that need arises.
If your child’s speech is behind schedule—and especially if you have noticed differences in eye contact, gestures, play, or social engagement—don’t wait to see whether the gap closes on its own. Contact NeuroHealth Arlington Heights today to schedule pediatric neuropsychological testing. A clear answer is the first step toward helping your child reach their full potential.
Photo by Xavi Cabrera on Unsplash
