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Autism-related behaviour concerns

Supportive care for individuals and families navigating autism spectrum conditions

AHPRA-registered Clinicians
Australian-owned and operated
Telehealth nationwide
Every person is different. Our Clinicians listen first and assess each situation on its own terms.

Autism, and what this page is about

Autism spectrum disorder, also known as autism, is a lifelong neurodevelopmental condition present from birth and arising from differences in early brain development. The word spectrum reflects how differently it presents from one person to the next.

Autistic people are neurodivergent, which means their brains work in ways that differ from what is typical or common. That difference is not in itself a problem, and autism is not an illness to be treated. The term Asperger’s syndrome is no longer used.

What families and autistic adults do sometimes seek help with are specific difficulties that arise alongside autism: sleep problems, anxiety, sensory overwhelm, and distressed or unsafe behaviour. Those are what this page covers.

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How autism presents

  • Social communication and interaction: Differences in how a person interacts, reads social cues, expresses themselves, and uses or interprets language. Many autistic people interpret words and concepts literally.
  • Limited and repetitive behaviours and interests: Strong focused interests, a preference for routine and predictability, and repetitive movements or activities.
  • Sensory differences: Unusual reactions to sounds, light, movement and textures, which can affect ordinary activities like bathing, dressing or eating.

Adults commonly describe being extremely sensitive to their environment, becoming overwhelmed easily, finding social situations effortful, and preferring their own company.

Behaviours of concern

Behaviour that is distressed, aggressive or unsafe is usually communication. It tends to arise when a need is unmet, an environment is overwhelming, a routine has been disrupted, or something is causing pain or discomfort that the person cannot easily report.

Australian practice looks first for the cause rather than at the behaviour alone. That means checking for pain, illness, dental problems, constipation, poor sleep, sensory load, communication barriers and changes in environment, and addressing what is found. Positive behaviour support, delivered by qualified practitioners, builds strategies around the person and their setting.

Diagnosis

Around 3 times more males than females are diagnosed with autism, though autism is thought to be underdiagnosed in females. Autistic girls and women often have stronger language and communication skills and greater capacity to mask by imitating social behaviour, which delays recognition. Many find out in adulthood.

Autism is diagnosed by a psychiatrist or a psychologist, using standardised tools, and support levels from 1 to 3 are assigned according to the level of support a person needs. In children, a paediatrician is often involved alongside speech pathology and occupational therapy assessment.

Support available in Australia

Support is built around the individual rather than aimed at changing who they are. It commonly includes speech pathology, occupational therapy including sensory strategies, psychological support, positive behaviour support, and educational adjustments.

The National Disability Insurance Scheme funds supports for eligible people, and early intervention is recommended for children. Adults seeking diagnosis or support can start with a GP.

Before you book

What a consultation covers

A structured review of your health with an AHPRA-registered Clinician, by video or telephone.

  1. Your history

    A consultation with a LeafLine Clinic Clinician is a structured review of health. Your Clinician takes a full history: the current concerns, when they began, what triggers them, sleep, pain and other physical health, what has already been tried and what happened, current medicines, and the rest of the treating and support team.

  2. What you have already tried

    Your Clinician will discuss your concerns and review your previous treatments: what has been tried, what happened, and what you are taking now.

  3. The options

    Your Clinician explores appropriate management options based on clinical judgement and your individual circumstances. Specific treatment options can only be discussed and decided during a private consultation with a qualified Clinician.

  4. Whether this clinic is right for you

    Some people are not suitable for care through this clinic, and where that is the case your Clinician will say so during the consultation and discuss where to go next.

When to seek medical support

Speak with a GP or your treating team where behaviour has changed suddenly, where distress is escalating, or where there is any possibility of untreated pain or illness underneath it. Sudden behaviour change in someone who cannot easily report symptoms should always prompt a physical health check. If anyone's safety is at immediate risk, call 000.

Common questions

Is autism something that gets treated?

No. Autism is a lifelong neurodevelopmental condition, not an illness, and autistic people are neurodivergent rather than unwell. Support is built around the individual and their environment. What is sometimes assessed and managed are specific difficulties occurring alongside autism, such as sleep problems, anxiety, sensory overwhelm or distressed behaviour.

Why is autism diagnosed later in girls and women?

Around 3 times more males than females are diagnosed, though autism is thought to be underdiagnosed in females. Autistic girls and women often have stronger language and communication skills and greater capacity to mask by imitating social behaviour, so many are not identified until adulthood.

What causes behaviours of concern?

Distressed or unsafe behaviour is usually communication. It commonly arises from an unmet need, an overwhelming environment, a disrupted routine, or pain and discomfort the person cannot easily report. Australian practice looks first for the underlying cause, including pain, illness, dental problems, constipation, poor sleep and sensory load.

Who diagnoses autism in Australia?

Autism is diagnosed by a psychiatrist or a psychologist using standardised tools, with support levels from 1 to 3 assigned according to the level of support needed. In children a paediatrician is often involved alongside speech pathology and occupational therapy assessment. Adults seeking assessment can start with a GP.

About this page

This page is general health information about a condition. It is not a description of any treatment, it is not medical advice, and it is not a substitute for an assessment by a qualified practitioner. Decisions about your care are made with your Clinician, in a consultation, based on your own history.

Last reviewed 7 September 2026. Written by Umar Khan, CEO.

Sources

Book a consultation

If you or a family member are experiencing autism-related behaviour concerns, you can book a telehealth consultation with one of our AHPRA-registered Clinicians to discuss symptoms and care options.

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