What Age is Autism Typically Diagnosed? The Key Signs You Need to Know

June 19, 2025

Autism is typically diagnosed when a child is between 2 and 4 years old, but the signs can appear much earlier.  While some children show clear symptoms as young as 18 months, others may not be diagnosed until later. 


Early diagnosis is so important because it gives children the chance to get the support and therapies they need right from the start, setting them up for a brighter future.


Spotting the Early Signs of Autism

Parents might notice signs of autism in their child’s behavior, communication, or social interactions.


Some early signs include a lack of speech, trouble making eye contact, or not engaging with others as expected. 


These signs can sometimes be subtle, so it’s important to stay aware of your child’s development. 


If you’re concerned, speaking with a pediatrician can help you get on the right track.


Why Early Diagnosis Makes a Difference

Getting an early diagnosis can help your child get the right support at the right time.


Early intervention for autism can improve communication, social skills, and overall development, which can make a world of difference.


If you’re looking for autism support, Divine Steps ABA is here to help. Our team offers personalized autism services in North Carolina to support your child’s growth and progress every step of the way.

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