Autism · 2 min read
Signs of Autism by Age: A Parent's Guide
A calm, age-by-age guide to possible signs of autism in children, from 12 months to school age, and what to do next.
If you’re here, something about your child’s development may be on your mind. Trusting your instincts is often a good place to start.
Every child develops differently, and no single sign means a child is autistic. This guide highlights some common signs of autism at different ages, but it is not a diagnosis.
What Is Autism?
Autism is a difference in how a person communicates, interacts with others, and experiences the world around them.
Autistic children have strengths as well as challenges, and signs can look very different from one child to another. The aim of recognising signs early is simply to help children access the understanding and support they may need.
Around 12 Months
Some babies may:
- Show limited response to their name
- Do less pointing or showing to share interests
- Use fewer back-and-forth smiles, sounds or gestures
Around 18 Months to 2 Years
You might notice:
- Delayed language development or loss of words
- Limited pretend play
- Distress when routines change
- Strong reactions to sounds, textures or tastes
Ages 3 to 4
Some children may:
- Find playing with other children difficult
- Prefer repetitive play
- Take language very literally
- Find transitions and change challenging
Ages 5+
Some autistic children, particularly those who mask their difficulties, may be identified later.
Signs can include:
- Coping well at school but becoming overwhelmed at home
- Deep, focused interests
- Sensory sensitivities affecting daily life
- Anxiety around uncertainty and change
It’s important to remember that coping isn’t always the same as thriving. Some children work very hard to meet expectations during the school day and need time to recover afterwards.
What Should I Do If I’m Concerned?
If several of these signs sound familiar:
- Make a note of what you’re noticing.
- Ask school or nursery what they see.
- Speak to a professional with experience in autism.
At Speech Stuff, we look beyond labels to understand the whole child, including their communication, sensory processing, strengths and support needs.
When to Seek Advice
You don’t need a diagnosis to ask questions or seek support.
If you’d like to talk things through, book a free 20-minute call. We’re happy to answer your questions and help you decide on the next steps.
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