Difficulties with change in autistic children: understanding why they happen and how to help

Introduction

For many autistic children, change can be one of the most challenging aspects of daily life. A cancelled trip to the park, a different route to school, a substitute teacher, or a favourite cup being unavailable may lead to significant distress. To others, these reactions can seem disproportionate, but for an autistic child, unexpected changes can feel genuinely overwhelming rather than mildly inconvenient.

Difficulty coping with change is recognised within the diagnostic criteria for autism as part of a broader pattern of preference for predictability, routines and sameness. However, modern research increasingly suggests that these difficulties are not about stubbornness or a refusal to cooperate. Rather, they are often linked to anxiety, sensory processing differences, executive functioning challenges and intolerance of uncertainty.

Understanding why change feels difficult can help parents move away from viewing behaviours as “challenging” and towards seeing them as signs that a child needs support.

Why do autistic children find change difficult?

Intolerance of uncertainty

One of the strongest evidence-based explanations is a concept known as intolerance of uncertainty.

This refers to finding uncertainty particularly stressful or anxiety-provoking. Research suggests intolerance of uncertainty is closely associated with anxiety in autistic children and may help explain why seemingly minor alterations to plans can trigger significant distress.

For many autistic children, routines provide predictability and a sense of safety. When something changes unexpectedly, they may suddenly feel unable to predict what will happen next.

Executive functioning differences

Executive functions are the brain’s management skills.

These include:

• Planning
• Organisation
• Cognitive flexibility
• Switching attention
• Adapting to new situations

Executive functioning differences are common in autism and can make transitions particularly difficult. A change often requires stopping one activity, switching attention, processing new information and adapting behaviour rapidly. These demands can be exhausting.

Sensory processing differences

Many changes involve sensory changes.

Examples include:

• Moving classrooms
• Visiting new places
• Different foods
• New clothing
• Different teachers
• Changes in noise levels

Because autistic children frequently experience sensory differences, unfamiliar sensory experiences can significantly increase stress levels.

What difficulties with change might look like

Every child is different, but common signs include:

Preschool Children

• Becoming upset when routines change
• Distress if favourite objects are moved
• Refusing unfamiliar foods
• Difficulty settling in new environments
• Needing activities completed in a specific order
• Becoming distressed when expected events do not happen

School-Aged Children

• Anxiety before changes in routine
• Excessive questioning about upcoming events
• Difficulty moving between activities
• Distress when plans change unexpectedly
• Emotional outbursts during transitions
• Refusal to participate in unfamiliar activities

Teenagers

• Increased anxiety about future events
• Significant reassurance seeking
• Difficulty coping with changes in friendships
• Distress around timetable changes
• Resistance to trying new experiences
• Emotional shutdowns or meltdowns following unexpected events

Major life changes can be especially challenging

Some changes require substantial adjustment.

Examples include:

• Starting nursery
• Beginning primary school
• Moving to secondary school
• Family separation
• House moves
• Bereavement

The move from primary to secondary school can be particularly challenging because it often involves multiple simultaneous changes, including new environments, increased independence, different teachers, changing classrooms and more complex social expectations. are coping badly. It may simply reflect the additional demands that change places on your nervous system.

How can parents help?

Provide advance warning

Whenever possible, let your child know about changes ahead of time.

For example:

• “We’re visiting Grandma tomorrow.”
• “Your teacher will be away on Friday.”
• “We are taking a different route home today.”

Many autistic children benefit from having time to prepare mentally for a change.

Use visual supports

Visual aids help make change more predictable.

Helpful tools include:

• Visual schedules
• Calendars
• Social stories
• Countdown charts
• Photographs of new environments

Research and clinical practice consistently support visual supports as a way of reducing uncertainty during transitions.

Explain what will stay the same

Parents often focus on explaining what will change.

However, it can also help to explain what remains unchanged.

For example:

“You will have a different classroom, but you’ll still have lunchtime, playtime and your favourite reading book.”

This provides reassurance and familiarity.

Validate their feelings

Avoid saying:

• “It’s not a big deal.”
• “You’ll be fine.”
• “Stop worrying.”

Instead try:

• “I can see this feels difficult.”
• “It’s okay to feel worried.”
• “Let’s think about what might help.”

Validation helps children feel understood.

Build flexibility gradually

The goal is not to eliminate routines completely.

Instead, support flexibility in manageable ways.

Examples might include:

• Using different coloured cups occasionally
• Taking a new route on a familiar journey
• Trying one new food alongside a preferred food
• Introducing small variations into favourite games

Research suggests flexibility develops best when changes are small, supported and predictable.

Consider underlying anxiety

When children become distressed following changes, ask yourself:

“What is making this situation feel uncertain?”

Often the issue is not the change itself but anxiety about the unknown.

What should parents avoid?

Try to avoid:

• Punishing distress
• Labelling the child as stubborn
• Introducing unnecessary surprises
• Forcing abrupt changes without support
• Expecting flexibility when a child is already overwhelmed

Distress linked to change is usually a sign that support is needed rather than an indication of poor behaviour.

A final thought

Difficulty coping with change is a common and understandable aspect of autism. It is often linked to intolerance of uncertainty, executive functioning differences, anxiety and sensory processing differences rather than wilful behaviour.

By increasing predictability, preparing children for transitions and validating their experiences, parents can help autistic children develop confidence and resilience when navigating an unpredictable world.