10 Early Signs of Autism Parents in Ontario Should Know

Every child develops differently, and no two children are exactly alike. However, some developmental differences may be early signs of autism spectrum disorder (ASD). Recognizing these signs early can help families access assessments, support services, and resources sooner.

It is important to remember that showing one or two signs does not automatically mean a child is autistic. Autism exists on a spectrum, and signs can vary widely from one child to another.

Here are 10 early signs of autism parents in Ontario should know.

1. Delayed Speech or Communication

One of the most common early signs of autism is delayed speech development.

Some children may:

• speak later than expected,

• use very few words,

• stop using words they previously learned,

• or have difficulty expressing needs and emotions.

Other children may speak well but struggle with back-and-forth conversation or understanding social communication.

2. Limited Eye Contact

Many autistic children may avoid or have reduced eye contact during interactions.

For example, a child may:

• rarely look at parents when spoken to,

• avoid eye contact during play,

• or appear more focused on objects than faces.

It is important to note that eye contact alone is not enough to determine autism, but it can be one possible sign.

3. Not Responding to Their Name

By around 12 months, many children consistently respond when their name is called.

Some autistic children may:

• appear not to hear their name,

• ignore verbal attempts to get attention,

• or respond inconsistently.

Parents sometimes first wonder about hearing issues before learning autism may be involved.

4. Repetitive Behaviours or Movements

Repetitive behaviours are another common sign of autism.

Examples may include:

• hand flapping,

• rocking,

• spinning,

• repeating sounds or phrases,

• lining up toys,

• or becoming highly focused on specific routines or objects.

These behaviours may help children regulate emotions or sensory input.

5. Difficulty With Social Interaction

Some autistic children may have difficulty engaging socially with others.

This can include:

• limited interest in playing with peers,

• difficulty sharing attention,

• preferring to play alone,

• or challenges understanding social cues and emotions.

Social differences may become more noticeable during daycare or preschool years.

6. Sensory Sensitivities

Many autistic children experience sensory sensitivities.

They may become overwhelmed by:

• loud noises,

• bright lights,

• certain textures,

• crowded environments,

• or specific clothing fabrics.

Others may actively seek sensory input through movement, pressure, or touching objects.

7. Strong Need for Routine

Children with autism often prefer routines and predictability.

Changes in routine may lead to:

• emotional outbursts,

• anxiety,

• frustration,

• or difficulty transitioning between activities.

Even small changes can feel overwhelming for some children.

8. Limited Gestures or Facial Expressions

Early communication is not only about words.

Some autistic children may use fewer:

• gestures,

• facial expressions,

• pointing behaviours,

• or attempts to share interests with others.

For example, a child may not point to show excitement or bring toys to parents to share attention.

9. Intense Interests

Autistic children sometimes develop highly focused interests at an early age.

They may become deeply interested in:

• numbers,

• letters,

• vehicles,

• maps,

• patterns,

• or specific topics.

These interests can become a major source of enjoyment and comfort.

10. Delayed Pretend Play

Pretend or imaginative play often develops between ages 18 months and 3 years.

Some autistic children may:

• show limited interest in pretend games,

• use toys differently than expected,

• or prefer repetitive play instead of imaginative scenarios.

For example, a child may repeatedly spin wheels on a toy car rather than pretend to drive it.

When Should Parents Seek an Assessment?

If you notice several of these signs consistently, it may be helpful to speak with:

• your family doctor,

• pediatrician,

• or another healthcare professional.

Early assessment and support can help children build communication, emotional regulation, learning, and daily living skills.

In Ontario, families can also explore autism-related services and supports after diagnosis.

Final Thoughts

Autism looks different in every child. Some children show signs very early, while others may not show noticeable differences until later childhood.

The goal of early identification is not to “change” who a child is. It is to better understand how they experience the world and how to support their growth and well-being.

At Autism Help Ontario, we are committed to helping families across Ontario access reliable autism information, practical resources, and supportive guidance.