What Is Interoception and How Does It Affect Toilet Training in Autism?

Article by Monica Reeves (B.Nurs, GradCert Autism) - Autism & Continence Specialist, Founder of Brightlives

I’m often asked by parents why their child doesn’t seem to notice when they need to go to the toilet. Sometimes they’ve tried everything, routine toileting, rewards, reminders, and still, accidents keep happening. One of the most common reasons I see in my clinical work is something called interoception.

What Is Interoception?

Interoception is the body’s ability to recognise internal signals.

This includes things like:

• feeling hungry

• feeling thirsty

• noticing a full bladder

• recognising the need to open bowels

For many children, these signals gradually become stronger and easier to recognise as they grow, but for many autistic children, this process can work differently.

How Interoception Affects Toilet Training

In my work as a Clinical Nurse Consultant specialising in autism and continence care, I often see children who don’t recognise the early signals that they need to go to the toilet. Instead of feeling a gradual build-up, the signal may come very late . Sometimes only moments before the bladder releases.

This can look like:

• sudden wetting without warning

• rushing to the toilet but not making it in time

• seeming unaware of accidents

• continuing to play despite needing the toilet

From the outside, it can sometimes look like the child is ignoring the toilet, but in many cases, they simply aren’t receiving the signal early enough. This is where Continence Assessments can be helpful. They can help you pinpoint where in the process the signal is not getting through.

Why This Can Be Confusing for Families

Many families are given advice that focuses on behaviour.

Things like:

• “They need more motivation”

• “They’re just not trying”

• “They’ll do it when they’re ready”

In my clinical experience, this can lead to a lot of frustration, both for the child and the family because when interoception is reduced, the challenge isn’t about willingness. It’s about body awareness. And body awareness can’t be trained in the same way as behaviour.

What It Looks Like in Real Life

In continence assessments, I often meet children who are very capable in many areas but still struggle with toileting. A common pattern I see is: The child is engaged in an activity, playing or focusing on something they enjoy. There are no signs they need the toilet. Then suddenly, there is an accident. This isn’t because they chose not to go. It’s because the body signal didn’t come early enough to act on.

Supporting a Child With Reduced Interoception

When interoception is a factor, the approach to toileting often needs to shift.

Rather than relying on the child to recognise the urge, we support them with structure and predictability. Some strategies I often recommend include:

• Introducing regular, predictable toilet routines throughout the day

• Supporting transitions to the bathroom before key activities

• Observing patterns in timing rather than waiting for signals

• Using visual supports or prompts where helpful

In many cases, continence products are also used during this stage to support the child’s comfort and dignity while learning develops.

Progress Takes Time

One of the most important things for families to understand is that interoception develops over time. For some autistic children, it may take longer for these body signals to become clear and consistent. This doesn’t mean progress isn’t happening. It just means the pathway looks different.

The Key Takeaway

Toilet training is not always about teaching a child what to do. Sometimes it’s about understanding how their body works. When we recognise the role of interoception, we can shift from expecting the child to respond to signals to supporting them in ways that work with their body.

And that’s often where meaningful progress begins.

If you would like a Brightlives Continence Assessment please contact us below. We look forward to beginning to journey alongside you and your family as you navigate continence and Autism.

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About the Author

Monica Reeves,

Clinical Nurse Consultant, Autism & Continence Specialist

Bright Lives – Telehealth Across Australia

Monica provides specialised NDIS continence assessments, non NDIS funded continence assessments, NDIS reports, and practical continence strategies for children and adults with autism and complex support needs.