Autism FAQs

What is autism?

Autism, or autism spectrum disorder, is a neurodevelopmental condition that affects how a person communicates, connects with others, and experiences the world. It shows up differently in every child. Two children with the same diagnosis can look very different from one another. Autism is not a disease or a deficit to be corrected. It is a different way of being in the world, and with the right support, children with autism can thrive.

What is the difference between autism and autism spectrum disorder?

These terms refer to the same thing. Autism spectrum disorder, or ASD, is the clinical name used in diagnosis, while “autism” is the more commonly used everyday term. The word “spectrum” reflects the wide range of ways autism presents. Some children are highly verbal and social with more subtle differences, while others need significant daily support. Both terms are widely accepted, and many autistic people and families use them interchangeably.

What are the early signs of autism in young children?

Early signs can show up before a child’s first birthday, though they are not always obvious at first. Parents often notice limited eye contact, fewer smiles in response to others, and little babbling or pointing. A reduced response to their name is also common. Some children develop typically for a period and then begin to lose skills they previously had. That pattern is also worth bringing to a doctor’s attention. If something feels off, trusting that instinct and talking to your child’s pediatrician is always the right move.

At what age is autism usually diagnosed?

Autism can be reliably diagnosed as early as age 2 by an experienced clinician. In practice, many children are diagnosed between the ages of 3 and 5. Some receive a diagnosis much later, including in adolescence or adulthood. The American Academy of Pediatrics recommends screening all children for autism at their 18-month and 24-month well-child visits. Earlier diagnosis generally means earlier access to support, which tends to make a meaningful difference in long-term outcomes.

What causes autism?

Research points to a combination of genetic and environmental factors, though no single cause has been identified. Autism tends to run in families, suggesting a genetic component, but no single gene or trait explains it fully. What is clear is that autism is not caused by parenting choices, vaccines, or anything a family did or did not do. The research on vaccine safety is extensive and consistent, and no credible scientific evidence supports a link between vaccines and autism.

Do vaccines cause autism?

No. This claim has been thoroughly studied and repeatedly disproven. The original study was retracted after serious ethical violations and data manipulation were uncovered, and its author lost his medical license. Dozens of large-scale, independent studies across multiple countries have found no link between vaccines and autism. Vaccinating your child is safe and important for their health and the health of others around them.

How is autism diagnosed?

There is no blood test or brain scan for autism. Diagnosis is based on observing a child’s behavior and development through a structured evaluation by a developmental pediatrician, psychologist, or specialist team. The process typically includes developmental history, direct observation, and standardized assessments. A thorough evaluation gives families a clear picture of their child’s strengths and areas where support would be helpful.

Will my child need therapy, and for how long?

Many children with autism benefit from some form of therapy, but the type, intensity, and duration vary significantly depending on the child. ABA therapy, speech therapy, and occupational therapy are among the most commonly recommended supports. Some children participate in intensive programs for a period of years, while others need more targeted support in specific areas. The right approach is always based on the individual child, and it changes as the child grows and their needs evolve.

What is ABA therapy, and is it right for my child?

ABA (Applied Behavior Analysis) is an evidence-based therapy that builds communication, social, and daily living skills through structured, positive reinforcement. It is one of the most well-researched approaches for supporting children with autism. It can also be adapted for a wide range of ages and needs. At Lexington Center for Children, ABA programs are built around your child’s specific profile, not a standard template. The work is always tied to what actually matters for your child right now. Whether it is the right fit depends on your child’s specific goals and learning profile. A consultation with a Board Certified Behavior Analyst (BCBA) is the best way to get a clear answer for your child specifically.

My child was just diagnosed. Where do I start?

Start by giving yourself a moment. A diagnosis can bring up a lot of emotions, and all of them are valid. From a practical standpoint, start by talking to your child’s pediatrician about referrals. If your child is under 3, look into early intervention services. If therapy has been recommended, connecting with an ABA provider is a good next step. You do not have to figure it all out at once, and you do not have to do it alone.

Will my child be able to go to a regular school?

Many children with autism attend mainstream schools, either in general education classrooms or with additional support. Some attend specialized programs depending on their needs and what is available in their district. An Individualized Education Program, or IEP, is a legal document outlining the supports and services your child is entitled to in school. Connecting with your school district early and understanding your child’s rights are important steps.

Is autism a lifelong condition?

Yes, autism is a lifelong neurological difference. What changes over time is how it shows up and which kinds of support are helpful. Many autistic people lead full, independent lives with meaningful relationships and careers. Others need ongoing support in certain areas. Early intervention and the right supports along the way can significantly expand what is possible for a child. What tends to matter most is finding an environment that works with who your child is, not against it.

Still Have Questions? We Are Here to Help

If your question were not covered here, our team at Lexington Center for Children would be glad to talk it through. Every family’s situation is different, and these frequently asked questions about autism spectrum disorder may not cover yours. We are happy to answer it directly. There is no pressure and no commitment involved in reaching out. Just a conversation with someone who genuinely wants to help your family find the right next step.