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For any parent, seeing their child learn and thrive with each new milestone reached is one of life’s greatest joys. 

But when those expected achievements fail to materialize or their child’s behaviors seem unusual, it can cause understandable worry and concern.

Diagnosing autism is a complex process involving consideration of numerous social, communication, and behavioral factors across multiple domains of development. 

That’s where speech therapists can offer valuable insight. 

As an integral part of evaluation teams, utilizing their specialized training and experience interacting one-on-one with clients, speech pathologists are well-positioned to provide meaningful perspectives.

Yet autism presents differently in each individual and involves more than just communication challenges. So can speech therapists identify autism alone? 

In this article, we’ll explore the role of speech therapists in identifying and supporting children with autism, and what you can expect from a speech therapist if you suspect your child may have autism.

What is Autism Spectrum Disorder (ASD)?

Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition characterized by challenges in social communication and interaction, restricted interests, and repetitive behaviors. 

This disorder occurs in all ethnic, racial, and socioeconomic groups and is roughly 4 times more common among boys than girls.

Autism is a spectrum disorder, meaning it affects people differently and to different extents. 

Some individuals with autism may have mild symptoms and need minimal support, while others may have more severe symptoms and require significant assistance in their daily lives.

There is also no known cure for ASD, but early diagnosis and intervention can significantly improve outcomes.

While ASD can present significant challenges, it is important to recognize that individuals with ASD are not defined by their disorder. 

They are individuals with their unique strengths, abilities, and talents, and they are capable of achieving great things with the right support and accommodations

Early Signs and Symptoms of Autism

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While every child develops at their own pace, certain behaviors and developmental markers may indicate the possibility of ASD. 

Here are some common early signs and symptoms:

1. Lack of or limited eye contact: Infants typically begin making eye contact within the first few months of life. Limited eye contact or a lack thereof might indicate potential social difficulties.

2. Difficulty responding to their name: Children with autism might not react or respond when their name is called.

3. Delayed speech or language development: Some children with ASD may have delayed speech or language milestones. 

They might start speaking later than expected or have difficulty developing a wide range of vocabulary.

4. Limited or no gestures: Gestures like pointing, waving, or showing objects are delayed or absent in some children with autism.

5. Repetitive movements or actions: Children with ASD might engage in repetitive behaviors like hand flapping, rocking back and forth, or spinning objects.

6. Focused and intense interests: They might display intense interests in specific objects or topics, often with a deep level of knowledge or obsession.

7. Heightened sensitivity or aversion to sensory stimuli: Some children with ASD might be sensitive to certain sounds, lights, textures, or smells, leading to overreaction or aversion to these stimuli.

8. Seeking sensory stimulation: On the other hand, some children may seek sensory input, such as ripping papers, or repeatedly touching certain textures or objects.

9. Resistance to change: Children with autism may have difficulty coping with changes in routines or environments. 

They might become upset or distressed when there are alterations in their familiar surroundings or daily schedules.

10. Unusual play behaviors: They may engage in repetitive or non-functional play, such as lining up toys rather than engaging in imaginative or interactive play.

It’s important to remember that these signs and symptoms are indicators and not definitive proof of autism. 

Additionally, some children may show developmental differences that resolve over time without leading to an autism diagnosis.

Diagnosing Autism

Diagnosing ASD is a comprehensive evaluation performed by a team of medical and mental health professionals. 

As there is no single medical test, diagnosis involves observing a child’s behavior and development over time.

Professionals follow criteria in the DSM-5 to assess impairments in social communication/interaction and the presence of restricted/repetitive behaviors. 

The severity of symptoms is also taken into account during the diagnostic process.

A key part of diagnosis is reviewing the developmental history of the parents. 

Doctors ask detailed questions about early milestones in areas like social engagement, nonverbal communication skills, and restrictive behaviors.

Medical exams help rule out other potential causes, and genetic testing may be used if a syndrome is suspected. 

Standardized diagnostic tools are also employed, such as observational tests, interviews, and checklists to identify ASD behaviors.

Signs professionals look for include deficits in social-emotional reciprocity through difficulties engaging in conversations, interpreting the emotions of others, or forming friendships. 

Impairments in nonverbal communication skills like eye contact and body language are also evaluated. 

Rigid behaviors, intense interests, and sensory sensitivities provide additional diagnostic context during diagnosis.

By gathering information from multiple sources over time, a complete picture can be formed to determine whether diagnostic criteria are met for autism spectrum disorder

Who are Speech Therapists?

A speech therapist, also known as a speech-language pathologist (SLP), is a healthcare professional who specializes in the assessment and treatment of communication and swallowing disorders. 

They work with individuals of all ages, from infants to older adults, who have difficulties in speech, language, voice, fluency, and swallowing.

Many children with autism experience difficulties with speech and language skills. 

As developing communication is a core challenge for those with autism, speech therapists are specially trained to address these issues.

Numerous studies have demonstrated that early intervention for children with ASD at the prelinguistic and early language stages can lead to significant improvements in their short-term outcomes.

Speech therapists play a vital role in this process, as their interventions have been found to significantly enhance the communication abilities of autistic children.

For example, a study published in the Journal of Autism and Developmental Disorders found that speech therapy interventions focusing on social communication skills significantly improved the communication skills of children with ASD.

Techniques Used by Speech Therapists

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Speech therapists use a variety of techniques and strategies to help individuals with autism achieve these goals. 

Some common approaches include:

1. Applied Behavior Analysis (ABA): 

ABA is a behavioral therapy that focuses on breaking down complex behaviors into smaller, more manageable parts. 

Speech therapists may use ABA techniques to help individuals with autism develop better communication skills.

2. Pivotal Response Treatment (PRT): 

PRT is a type of ABA that focuses on improving communication and social skills. 

Speech therapists may use PRT to help individuals with autism develop better language and social skills.

3. Visual Supports: 

Many individuals with autism are visual learners, so speech therapists may use visual supports such as pictures, diagrams, and charts to help them understand and communicate more effectively.

4. Augmentative and Alternative Communication (AAC): 

AAC systems are designed to help individuals with autism communicate more effectively. 

Speech therapists may use AAC systems such as picture communication symbols, gestures, or electronic devices to help individuals with autism communicate their needs and wants.

5. Social Skills Training: 

Speech therapists also work with individuals with autism to develop better social skills, such as initiating and maintaining conversations, reading nonverbal cues, and developing friendships.

Can a Speech Therapist Diagnose Autism?

Diagnosing autism typically involves a multidisciplinary approach, with professionals such as psychologists, pediatricians, and psychiatrists working together to assess an individual’s symptoms and behaviors. 

Although speech therapists are not typically the sole professionals involved in diagnosing autism, they can contribute valuable insights to the diagnostic process.

While limited to assessing language and communication criteria, qualified speech therapists contribute thorough observation reports, standardized testing results, and video examples of sessions to diagnostic teams. 

During their interactions with individuals suspected of having autism, speech therapists may observe and assess various aspects of communication, including speech production, language comprehension, social communication, and pragmatic language skills. 

They may also administer standardized assessments and use other diagnostic tools to gather information about an individual’s communication abilities. 

This aids other professionals in comprehensively evaluating criteria across various developmental domains to determine if the criteria for autism are fully met.

However, an autism diagnosis can only be made and documented formally by licensed clinical psychologists or physicians specializing in neurodevelopmental disorders based on consensus across all evaluated criteria. 

Speech therapists assist with elements in their scope but lack authority for sole diagnosis.

Role of Speech Therapists in Autism Treatment

Speech therapists play a vital role in helping children with ASD develop the social communication and language skills needed to fully participate in daily life. 

Their overarching goal is to support meaningful engagement through relationships, interactions, and self-expression.

Speech therapists recognize that success requires a team approach. 

They collaborate closely with families to design individualized treatment plans focusing on each child’s unique profile and needs. 

Goals center around enhancing social and conversational abilities, comprehension, expression of wants and needs, and use of alternative methods when needed.

They also provide training to the whole support system to ensure skills are practiced consistently outside sessions. 

Whether instructing caregivers, educators, or the children themselves on strategies for communication devices or environmental modifications, the entire team is empowered to facilitate growth.

They actively involve parents in decision-making and encourage the application of techniques at home through play-based learning. 

Through specialized methodologies, speech therapists play an essential role in guiding children with autism toward holistic communication development and full participation in life. 

How to Find a Good Speech Therapist

Finding a good speech therapist is essential for individuals seeking assistance with communication and language challenges, including those related to autism. 

Here are some steps to help you find a qualified and experienced speech therapist:

1. Seek Recommendations: 

Start by asking for recommendations from trusted sources, such as pediatricians, educators, or other healthcare professionals

They may have valuable insights into reputable speech therapists in your area.

2. Research Credentials and Experience: 

Once you have a list of potential speech therapists, research their credentials and experience. 

Look for speech therapists who are licensed and certified by recognized professional organizations, such as the American Speech-Language-Hearing Association (ASHA) in the United States. 

3. Check Specializations: 

Autism presents unique communication challenges, so it’s beneficial to find a speech therapist who specializes in working with individuals on the autism spectrum. 

Look for therapists who have specific training and experience in autism-related interventions, such as Applied Behavior Analysis (ABA) or Social Communication Intervention.

4. Consider Location and Availability: 

Take into account the location and availability of the speech therapist. 

Ensure that the therapist’s office is conveniently located and that they have flexible scheduling options that align with your needs.

5. Consider Compatibility and Rapport: 

Building a good working relationship with a speech therapist is crucial for effective therapy. 

Consider the therapist’s communication style, their ability to establish rapport with your loved one, and their responsiveness to your questions and concerns.

6. Request References: 

Don’t hesitate to ask for references from previous or current clients. 

Speaking with other families who have worked with the speech therapist can provide valuable insights into their expertise, professionalism, and the outcomes they have achieved.

7. Trust Your Instincts: 

Ultimately, trust your instincts when making a decision. 

If you have a positive feeling about a particular speech therapist and believe they are the right fit for your loved one, it may be a good indication of a promising therapeutic relationship.


Speech therapists play a vital role in the multidisciplinary team assessing and treating individuals with autism. 

While they do not independently diagnose autism, their expertise in communication evaluation and therapy contributes significantly to the diagnostic process and the development of tailored interventions. 

Collaborative efforts among professionals ensure a comprehensive understanding of an individual’s strengths and challenges, paving the way for more effective treatment strategies and improved outcomes for individuals on the autism spectrum.


1. At what age can autism be diagnosed?

Autism can be diagnosed as early as two years old, but some children might receive a diagnosis at a younger age, while others may be diagnosed later in childhood.
Early identification and intervention, ideally before the age of 3, are crucial for optimal outcomes.

2. Can adults be diagnosed with autism?

Yes, individuals can receive an autism diagnosis in adulthood, even if they did not receive one as a child.
Some people may have lived with undiagnosed ASD for years before seeking an evaluation.

3. Where can I seek help if I suspect someone has autism or needs more information?

Healthcare professionals such as pediatricians, psychologists, or developmental specialists can evaluate and provide guidance.
Additionally, organizations specializing in autism advocacy and support can offer resources and information



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