When Two Worlds Overlap: Autism in the Deaf and Hard of Hearing Community

Toby Overstreet
1 day ago
5 min read

This article is Part 2 of our Autism Awareness Month series. If you're just joining us, start with Part 1: Autism Looks Different in Every Child.

Disclaimer: OULDHH is not made up of medical or educational professionals. This article is for informational and educational purposes only. Please talk to a qualified healthcare provider, educational specialist, or advocate for guidance specific to your child's needs.

Have you ever felt like something was being missed about your child? Like there was more going on than their hearing loss alone could explain? You are not imagining things. And you are not alone.

The Problem Has a Name: Diagnostic Overshadowing

There is a term researchers use for what happens when one diagnosis gets in the way of seeing another. They call it diagnostic overshadowing. One condition takes all the attention, and the other one gets missed. If you want to read a simple, real-life explanation of what this looks like, Goally explains it well here.

For DHH children, the deafness almost always takes center stage. Doctors and teachers may assume that a child's social struggles, communication delays, or sensory behaviors are simply "part of being Deaf" - and stop looking for other answers. The problem is that autism and deafness genuinely share a lot of the same signs, which makes it easy to get it wrong.

As experts at Gallaudet University, clinicians, and audiologists all point out, the overlap can look like:

Social withdrawal - Is it because they cannot follow the conversation, or because of autism-related social differences?
Language delays - Is it a lack of access to sign language, or a difference in how their brain processes language?
Eye contact - Differences in eye contact are common in autism, but eye contact is also used differently in Deaf culture.

A study summarized by the Association for Child and Adolescent Mental Health talked with parents of Deaf autistic children and found this playing out again and again. Practitioners kept explaining behaviors away as typical for a Deaf child, while autism went unrecognized for years.

The bottom line: When a child does not get an autism diagnosis, they do not get autism-specific support. They miss the right IEP goals, the right interventions, and the early help that makes the biggest difference.

Why Diagnosis Takes So Much Longer

On average, DHH children receive an autism diagnosis about three years later than hearing children. Three years is a long time in a child's development. So why does it keep happening?

Part of the reason is that the tools used to diagnose autism were never built with Deaf children in mind. Most - including the widely used Autism Diagnostic Observation Schedule (ADOS-2), considered the gold standard for autism assessment - were designed for hearing children and include questions about responses to spoken names or sounds. Updated versions for Deaf children exist, but most clinics do not have access to them yet.

Another part is that there simply are not enough clinicians who understand both autism and Deafness. That combination of expertise is rare, and when it is missing, children fall through the cracks.

And then there is the reality that families naturally focus on what is most visible. When a child is Deaf, hearing technology and communication access come first. In the middle of all that, signs of autism - like Sign Echolalia, intense focus on spinning or moving objects, or strong distress when routines change - can be easy to overlook. As one audiologist told The Transmitter, families are sometimes genuinely caught off guard when a clinician brings up autism for the first time - not because the signs were not there, but because no one had been looking for them.

The bottom line: The delay is not your fault. The system was not built for your child. But knowing that gives you the power to push harder.

What This Means at School: The Integrated IEP

If your child is both Deaf and autistic, their school plan needs to hold both realities - not just one. You should not have to choose between a "Deaf plan" and an "Autism plan."

If you are new to IEPs and 504 Plans, our guide on the basics is a good place to start before reading on.

In practice, this is where many families hit a wall. A child might have an IEP focused entirely on hearing loss - captioning, visual supports, interpreter services - with nothing addressing their autism needs. Or the reverse: an autism plan written for a hearing child, with no consideration of how a Deaf student communicates and learns.

Under the Individuals with Disabilities Education Act (IDEA), schools must provide a Free Appropriate Public Education (FAPE) designed for all of your child's specific needs. Under the Americans with Disabilities Act (ADA), they must also ensure your child can communicate as effectively as any other student. Both laws are on your side.

The bottom line: Your child deserves a plan that sees all of them - not just one diagnosis at a time.

What Families Can Do Right Now

Knowing all of this can feel heavy. But it also gives you something to work with. Here are concrete steps you can take:

Ask for a full evaluation. Put your request in writing to the school district and specifically mention that you want an evaluation that looks at autism separately from the hearing loss. The school must respond. If they decline, they have to put that in writing - and you have the right to challenge it.

Look for a team, not just one person. The best evaluations involve an audiologist, a psychologist, and a speech-language pathologist working together - not in separate silos. If you can, seek out a provider or clinic with experience in both autism and Deafness.

Keep a log of what you are seeing. Write down specific behaviors - things like Sign Echolalia, strong distress when routines change, or intense focus on certain objects. Note when they started. A parent's detailed observations are real, valuable evidence. Do not underestimate what you have noticed.

Trust what you know. Many families have been told that what they were seeing was "just Deafness." Some of those families were right - there was something more going on. You know your child better than any clinician who sees them for an hour. That knowledge belongs at the table.

A Note on Language

In the autism community, some people prefer "autistic person" (identity-first language). Others prefer "person with autism" (person-first language). In the Deaf community, most people use identity-first language and write "Deaf" with a capital D as a mark of cultural identity. In this article, we have used both.

The most important thing is to follow the lead of the person you are talking with - or, if that person is your child, to keep the conversation open as they grow into their own sense of identity. You can learn more about Deaf101 on our OUL website.

You Do Not Have to Figure This Out Alone

OULDHH exists because the Deaf and neurodivergent communities belong together. If your child lives at the intersection of these two worlds, they deserve to be fully seen, understood, and supported.

This month, while the broader world talks about autism awareness, we want to make sure your community is part of that conversation - not an afterthought.

If you are working through a dual diagnosis or trying to get an evaluation started, reach out. Others have walked this road. You will find more support than you expect.

Do you have a story about navigating an autism diagnosis in the Deaf or Hard of Hearing community? We would love to hear it. [Contact us at oulorg22@gmail.com]