Quick answer: Early signs of autism in toddlers often show up in communication and social interaction, such as not responding to their name, limited eye contact, not pointing or waving by about 12 to 15 months, few or no words, or losing skills they once had. Some children also show repetitive movements or strong reactions to sounds and textures. If you notice these signs, talk with your pediatrician and ask about an autism screening or evaluation.
This article is for general educational purposes and isn't a substitute for medical or clinical advice. Only a qualified professional can evaluate or diagnose autism.
Every child develops at their own pace, and one missed milestone doesn't mean something is wrong. But if something about your child's development keeps nagging at you, it's worth paying attention to. Autism can often be identified in the toddler years, and getting support early gives children more time to build communication and social skills while their brains are growing fastest.
What Is Autism?
Autism spectrum disorder (ASD) is a developmental condition that affects how a child communicates, interacts with others, and experiences the world. It's called a spectrum because it looks different in every child. Some children have significant language delays, while others talk early but find social interaction challenging. Autism is not caused by parenting.
Early Signs of Autism by Age
The CDC's "Learn the Signs. Act Early." program lists behaviors that may be early signs of autism. A child might show some of these and not others.
By around 9 months
Doesn't respond to their name
Shows few facial expressions like smiling back at you
By around 12 months
Doesn't use gestures like waving bye-bye or reaching to be picked up
Doesn't play simple back-and-forth games like peek-a-boo
By around 15 to 18 months
Doesn't point to show you something interesting, like an airplane or a dog
Doesn't look where you point
Has few or no words
Doesn't engage in simple pretend play, like feeding a doll
By around 2 years
Doesn't use two-word phrases
Shows little interest in other children
Doesn't bring things to show you just to share
At any age
Loses words or skills they used to have
Avoids eye contact
Repeats words or phrases over and over
Lines up toys or objects and gets upset when the order changes
Flaps hands, rocks, or spins repeatedly
Has strong reactions to sounds, textures, smells, or lights
Has intense, narrow interests
Gets very upset by small changes in routine
Autism Signs vs. Typical Toddler Behavior
Lots of toddlers line up their cars, have meltdowns, or go through picky phases. A single behavior usually isn't a concern on its own. What matters more is a pattern of several signs, especially in social communication, that continues over time. The biggest red flag at any age is a child losing language or social skills they once had. If that happens, call your pediatrician right away.
What to Do If You Notice Signs
Write down what you see. Note specific behaviors, when they happen, and your child's age. Short videos can help your doctor understand.
Talk to your pediatrician. The American Academy of Pediatrics recommends autism screening for all children at their 18-month and 24-month well visits. You can ask for a screening at any visit, even if it isn't scheduled.
Ask about a full evaluation. A screening tool like the M-CHAT-R/F can flag a concern, but a diagnosis comes from a comprehensive evaluation by a qualified provider.
Contact Texas Early Childhood Intervention (ECI). ECI serves Texas children from birth to 36 months with developmental delays. You don't need a diagnosis or a doctor's referral to request an evaluation.
Don't wait to start support. You can begin services like speech therapy while you wait for an evaluation.
Why Early Support Matters
The toddler and preschool years are a period of rapid brain development. Children who receive early support, such as Applied Behavior Analysis (ABA) therapy and speech therapy, have more time to build communication, play, and social skills before they start school. Early support also helps parents learn strategies to use at home every day.
One common barrier is waiting. Families often wait months for an autism evaluation, which can delay services. Choosing a provider that offers diagnostic evaluations locally can help shorten that wait.
Frequently Asked Questions
What age can autism be diagnosed?
Autism can often be reliably diagnosed by age 2, and some signs can appear as early as the first year. Many children aren't diagnosed until later, which is why routine screening at 18 and 24 months is recommended.
What are the first signs of autism in a 1-year-old?
Common early signs include not responding to their name, limited eye contact, few facial expressions, and not using gestures like waving or pointing by about 12 months.
Can a toddler show signs of autism and not have it?
Yes. Some behaviors linked to autism can also come from hearing problems, language delays, or normal variation in development. A professional evaluation is the only way to know.
Is speech delay a sign of autism?
It can be, but not always. Many children with speech delays don't have autism. A speech delay combined with differences in social interaction, such as limited eye contact or not responding to their name, is more likely to warrant an autism evaluation.
Who can diagnose autism in Texas?
Autism is typically diagnosed by developmental pediatricians, child psychologists, child neurologists, or psychiatrists. Some ABA clinics, including The Learning Lane, also offer diagnostic evaluations.
Does insurance cover autism evaluations and ABA therapy?
Many insurance plans cover autism evaluations and ABA therapy when medically necessary. Coverage varies by plan, so check with your insurance company and the provider.
Local Support: The Learning Lane
The Learning Lane is part of The Young Learners family of schools, alongside The Woodlands Young Learners Academy and Oak Ridge Young Learners Academy. It's a locally owned group of ABA clinics serving children with autism and language delays from as early as diagnosis through elementary age. The Learning Lane offers:
Autism diagnostic evaluations, helping families avoid long wait times
Individualized ABA treatment plans
A multidisciplinary approach to speech, language, social, and play skills
Structured daily rotations that prepare children for a group school setting
Services through most major medical insurance providers
If you have questions about your child's development, The Learning Lane's team is here to talk through your situation.
The Learning Lane, The Woodlands
25232 Grogans Park, The Woodlands, TX 77380
346.331.5267
The Learning Lane, Oak Ridge
25511 Richards Road, Spring, TX 77386
281.465.3519