If you have ever searched “what is autism” late at night after a hard day, you are not alone. Millions of parents start right where you are: confused, worried, and looking for real answers instead of medical jargon.
We explain autism spectrum disorder at RightWay. You will learn what it is, what causes it, how it shows up at different ages, and what support actually looks like. RightWay ABA put this together to help families in New Jersey feel less overwhelmed and more prepared.
Autism Spectrum Disorder in Simple Terms
Autism spectrum disorder, or ASD, is a lifelong developmental condition. It affects how a person communicates, connects with others, and experiences the world.
ASD is called a “spectrum” for a reason. No two autistic people look exactly alike. Some children speak early and read above grade level. Others need years of support to build basic communication skills.
This wide range is why autism cannot be diagnosed with a blood test or scan. It is identified through behavior, communication patterns, and developmental history.
How Common Is Autism Right Now
Autism diagnoses have climbed steadily for two decades. The CDC now reports that autism affects about 1 in 31 children in the United States, based on the most recent nationwide data.
That number has grown from 1 in 150 children in the year 2000. Experts point to better screening, greater autism awareness, and expanded diagnostic criteria as the main reasons for the rise, rather than a single new cause.
Boys are still diagnosed more often than girls, though researchers believe many autistic girls are missed because their signs can look different or more subtle.
What Causes Autism Spectrum Disorder
There is no single cause of autism. Most researchers agree it comes from a mix of genetic and biological factors that shape early brain development.
The Role of Genetics
Autism tends to run in families. If one child in a family is autistic, siblings have a higher chance of also being on the spectrum. Researchers at the NIH have identified hundreds of genes linked to autism, though no single gene explains every case.
Differences in Brain Development
Brain imaging studies show that autistic brains can process sensory information, language, and social cues differently. These differences often begin before birth and shape how a child grows and learns from infancy onward.
What Does Not Cause Autism
Decades of research have ruled out several old myths. Large-scale CDC studies have found no link between vaccines and autism. Parenting style does not cause autism. A child’s diet alone does not cause autism.
Core Signs and Symptoms of Autism
Every autistic person is different, but a few patterns show up often enough to guide diagnosis.
Social Communication Differences
Autistic children may struggle to read facial expressions, maintain eye contact, or follow the back-and-forth flow of conversation. Some children speak in a flat tone or repeat phrases they have heard before, a pattern called echolalia.
Repetitive Behaviors and Routines
Many autistic children rely on routines to feel secure. Unexpected changes, like a different route to school, can cause real distress. Repetitive movements, known as stimming, are also common and can include hand flapping, rocking, or lining up toys.
Sensory Differences
Sound, light, texture, and touch can feel far more intense for an autistic child. A ticking clock or scratchy sweater that seems minor to one person can feel overwhelming to another. Some children also seek out extra sensory input, like jumping or spinning.
Early Signs Parents Often Notice
Autism can often be spotted before a child turns 2, though every child develops on a different timeline.
Common early signs include:
- Limited eye contact during feeding, play, or conversation
- Delayed or absent speech by 12 to 18 months
- Little interest in pointing or sharing objects with caregivers
- Strong attachment to routines, becoming upset by small changes
- Repetitive movements, such as hand flapping or rocking
Parents often describe a gut feeling that something is different, even before they can name it. That instinct is worth trusting, so ask a pediatrician for a closer look.
Autism Across the Lifespan
Autism does not disappear with age. It changes shape as a person grows, learns new skills, and faces new environments.
Autism in School-Age Children
Elementary and middle school introduce new social demands, like group projects, recess, and shifting friendships. Many school-age children with autism benefit from structured support, social skills coaching, and consistent routines both at school and at home.
Autism in Teens and Adults
Some autistic people are not diagnosed until their teenage or adult years, often after learning to mask their traits for years to fit in. Adult autism can look like intense focus on specific interests, difficulty with small talk, or sensory overwhelm in loud environments.
Understanding Autism Support Levels
Doctors also describe autism using support levels, which range from level 1, level 2, or level 3 based on how much daily support a person needs. This system replaced older labels like Asperger syndrome and helps guide therapy decisions.
Want the full picture of how these levels differ? Our detailed guide on the three levels of autism breaks down each one with a side-by-side comparison chart.
How Autism Is Diagnosed
There is no lab test for autism. Diagnosis is a process, not a single appointment.
Screening at Well-Child Visits
Pediatricians typically screen for autism at 18 and 24 months using short questionnaires about a child’s development. A positive screen does not confirm autism, but it signals that a closer look is needed.
The Full Developmental Evaluation
A complete evaluation usually involves a developmental pediatrician, psychologist, or a team of specialists. They will observe the child directly, interview parents about milestones, and use standardized tools to assess communication, behavior, and social skills.
This process can take weeks or months, which can feel agonizing for parents waiting. Getting on a specialist’s schedule early, even before you are sure something is wrong, can shorten that wait considerably.
Autism and Co-Occurring Conditions
Autism often shows up alongside other conditions, which can make diagnosis and treatment more complex.
- ADHD appears in a large share of autistic children, affecting attention and impulse control
- Anxiety disorders are common, especially around social situations or unexpected change
- Sleep difficulties affect many autistic children, including trouble falling or staying asleep
- Gastrointestinal issues are reported more often in autistic children than in the general population
Treating these co-occurring conditions alongside autism itself often improves a child’s overall quality of life.
Autism Myths That Still Need Correcting
A few outdated ideas about autism continue to circulate, even though research has moved far beyond them.
One common myth is that autistic people lack empathy. In reality, many autistic people feel emotions deeply but express them differently than expected. Another myth is that all autistic people have exceptional savant abilities. While some do have remarkable skills, most autistic people have a typical range of strengths and challenges, just like anyone else.
A third myth worth retiring is the idea that autism only affects boys. Girls and gender-diverse children are autistic too, though their signs are diagnosed less consistently.
Treatment and Support Options That Actually Help
There is no cure for autism because autism is not an illness. Support focuses on building skills, reducing frustration, and helping each child reach their own potential.
Applied Behavior Analysis Therapy
Applied Behavior Analysis (ABA) therapy is one of the most studied and widely recommended treatments for autism. ABA breaks down skills such as communication, self-care, and social interaction into small, teachable steps and reinforces progress with positive feedback.
Speech and Language Support
Speech therapy helps children build both verbal and nonverbal communication skills. For nonverbal children, speech therapists often introduce picture-based systems or communication devices to help them express their needs.
Occupational and Sensory Support
Occupational therapy helps children manage sensory sensitivities and build the fine motor skills needed for daily tasks, from handwriting to buttoning a shirt.
School-Based Services
Many children qualify for an Individualized Education Program, or IEP, which outlines specific accommodations and support services delivered through their school.
Living Well With Autism: A Strengths-Based View
It is easy for a diagnosis conversation to focus only on challenges. Autistic people also bring real strengths to the table, including sharp attention to detail, deep focus on subjects they love, honesty, and pattern recognition that can outperform neurotypical peers.
Framing autism around strengths, not just deficits, helps children build genuine confidence instead of only managing what feels hard.
What to Do After a New Autism Diagnosis
A new diagnosis can feel like information overload. Taking a few clear steps can help families move forward with less stress.
- Start early intervention services quickly. Waitlists can be long, so requesting an evaluation or therapy referral right away helps avoid delays.
- Connect with other parents. Local support groups and online communities offer advice that only comes from lived experience.
- Keep records organized. Save evaluation reports, therapy notes, and school documents in one place for future appointments and IEP meetings.
- Learn your child’s specific triggers. Every autistic child has unique sensory and emotional triggers worth tracking early on.
- Give yourself grace. Parents often feel guilt, grief, or fear after a diagnosis. Those feelings are normal and do not reflect how much you love your child.
Building a small, reliable care team, including a pediatrician, therapist, and school contact, makes future decisions far easier to navigate.
How RightWay ABA Supports New Jersey Families
At RightWay ABA, we know a diagnosis can feel like the start of a hundred new questions. Our team builds individualized ABA therapy plans for children across every support level, whether that means light coaching for social skills or comprehensive, full-time care.
We work closely with parents every step of the way, so progress made in therapy carries over into everyday life at home, at school, and in the community.
Frequently Asked Questions
What is the main cause of autism spectrum disorder?
Autism is caused by a combination of genetic and brain development factors. There is no single cause, and it is not linked to vaccines or parenting.
At what age can autism be diagnosed?
Autism can often be diagnosed as early as 18 to 24 months, though many children are not diagnosed until later childhood or adulthood.
Is autism a disability?
Yes. Autism spectrum disorder is legally recognized as a disability, though the level of support each person needs varies widely.
Can autistic children live independent lives?
Yes, many autistic people live independently, especially with early support. Others need ongoing help depending on their support needs.
Is autism more common in boys or girls?
Autism is diagnosed more often in boys, though many researchers believe autistic girls are underdiagnosed due to differences in how symptoms present.
Does autism get worse over time?
Autism itself does not worsen, but stress, lack of support, or new life changes can make symptoms feel more difficult to manage at certain points.
What is the difference between autism and Asperger syndrome?
Asperger syndrome is no longer a separate diagnosis. It is now included under level 1 autism spectrum disorder in current diagnostic guidelines.
How is autism different from ADHD?
Autism primarily affects social communication and behavior patterns, while ADHD affects attention and impulse control. The two conditions frequently occur together.
Final Thoughts
Autism spectrum disorder is not something to fear. It is a different way of experiencing and interacting with the world, one that comes with real challenges and real strengths.
The earlier a family understands what autism looks like for their child, the sooner they can access the right support. If you have questions about your child’s development or want to explore ABA therapy, the team at RightWay ABA is ready to help you find the right path forward.
