Autism Rates Are Rising. But Why?

One of the biggest questions parents ask is:

“Why does it seem like there are so many more autistic children today?”

It’s a fair question.

Autism diagnoses have increased dramatically over the last few decades. In schools, support services, waiting lists and online communities, more families than ever are talking about autism.

But does this mean autism itself is becoming more common?

Or are we simply getting better at recognising it?

The honest answer is that researchers are still trying to understand the full picture.

Better Awareness Means More Children Are Being Identified

For many years, autism was understood very differently than it is today.

Children who struggled socially, experienced sensory difficulties, became overwhelmed easily, or had unusual interests were often labelled as:

• Shy
• Anxious
• Difficult
• Naughty
• Attention-seeking
• Poorly behaved

Many autistic children simply weren’t recognised.

This was especially true for:

• Girls
• High-masking children
• Children with PDA profiles
• Children who performed well academically
• Adults who never received support growing up

Today, awareness is far greater than it was 20 or 30 years ago.

Teachers, parents, health professionals and schools are more likely to recognise autistic traits and refer children for assessment.

As a result, many children who would once have been overlooked are now receiving diagnoses and support.

Diagnostic Criteria Have Changed

Another reason diagnosis rates have increased is that the way autism is diagnosed has evolved.

Years ago, only children with more obvious presentations of autism were likely to receive a diagnosis.

Today we understand that autism exists across a wide spectrum of experiences.

Some autistic children may be highly verbal.

Some may have strong friendships.

Some may mask their difficulties at school but completely unravel at home.

As our understanding has improved, more children who previously wouldn’t have met diagnostic criteria are now being recognised.

Could There Be Other Factors?

Some researchers believe that increased awareness and changing diagnostic criteria explain a large part of the rise in autism diagnoses.

However, some studies suggest these factors may not explain all of the increase.

This has led researchers to explore whether environmental factors may also play a role alongside genetics.

One area being investigated is something called epigenetics.

Epigenetics looks at how genes and environmental influences may interact.

Autism is known to have a strong genetic component, but researchers are studying whether environmental factors before birth or during early development could influence how genetic traits are expressed.

It is important to stress that scientists do not currently have clear answers.

There is no single proven environmental cause of autism.

The research is ongoing.

What We Know For Certain

There is still much to learn about autism.

But there are some things researchers broadly agree on:

• Autism has a strong genetic basis.
• Awareness and recognition have improved significantly.
• More children are now being identified who would previously have been missed.
• Scientists are continuing to investigate why diagnosis rates have increased.
• There is no single accepted explanation for the rise in autism diagnoses.

The Question That Matters Most

While researchers continue exploring why autism diagnoses are increasing, many families are asking a different question:

“How do we make sure autistic children get the support they need?”

Across the UK, families continue to face:

• Long assessment waiting lists
• Delays accessing support
• School attendance difficulties
• Challenges securing EHCPs
• Mental health struggles caused by unmet needs

Whether autism is becoming more common or whether we are simply getting better at recognising it, one thing is clear:

Thousands of autistic children still aren’t receiving the support they need quickly enough.

And for many parents, that’s the issue that matters most.

What Do You Think?

Do you believe the rise in autism diagnoses is mainly due to better awareness and recognition?

Or do you think there may be other factors involved?

Let us know your thoughts.

At AskEllie, we believe the most important thing is ensuring autistic children and their families receive understanding, acceptance and the support they deserve.