What Are the Signs of Autism in 3-Year-Olds? Find Out Here*
- NeuroSpectrum Info
- Aug 20, 2024
- 2 min read
Updated: Feb 10

Every child grows and develops at their own pace. Still, if you notice certain differences in how your 3-year-old interacts, communicates, or engages with their surroundings, you might be wondering if autism is a possibility. Early identification can open doors to support and strategies that help your child thrive.
Social and Communication Differences
By age three, many children start engaging in back-and-forth conversations, making eye contact, and showing interest in playing with peers. Autistic children, however, may:
Struggle with making eye contact or prefer to look away when spoken to.
Show little interest in playing with other kids or prefer playing alone.
Have delayed speech or use words in a repetitive way (echolalia).
Struggle with responding to their name or understanding simple instructions.
Repetitive Behaviors and Sensory Sensitivities
Autistic children often find comfort in routines and repetitive behaviors. Some signs include:
Flapping hands, spinning, or rocking back and forth.
Becoming upset if routines change or objects are moved.
Intense focus on a specific object, toy, or topic.
Strong reactions to sensory input—avoiding loud noises, bright lights, or certain textures or seeking sensory experiences like spinning in circles.
Emotional and Behavioral Patterns
Some 3-year-olds with autism may express emotions differently. They might:
Have difficulty understanding or expressing emotions.
Experience frequent meltdowns triggered by overstimulation.
Struggle with pretend play or imaginative storytelling.
What to Do Next?
If you notice these signs, consider speaking with a pediatrician or specialist. Early intervention can provide tools and strategies tailored to your child’s unique strengths and challenges.
For more information, download the One Autism Health app for FREE.
*results may vary, please consult a professional.
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