As the prevalence of autism has risen and our understanding of who meets diagnostic criteria has expanded, more experiences and perspectives have entered the broader conversation about the language we use to talk about autism and the attitudes those words reflect. On social media and in everyday life, debates about “person with autism” vs. “autistic person” and explanations of what “neurodivergent” means abound.
One phrase that has gained attention is “profound autism.” It was introduced in a 2021 report by the Lancet Commission on the Future of Care and Clinical Research in Autism to describe a subgroup of autistic individuals with extremely high support needs. The term is not intended to be a separate diagnosis but rather a descriptor for individuals on the autism spectrum who have an IQ below 50, minimal functional communication, and require 24/7 supervision. A more refined definition was more recently presented at an International Society for Autism Research Annual Meeting, adding that the individual should be older than 8 years and have adaptive skills, such as toileting or dressing, significantly below age expectations. Many individuals in this group also display severely challenging or unsafe behaviors, including self‑injury, aggression, or elopement. While this term is increasingly used, it is not universally accepted.
Some people question whether this distinction is necessary, and others argue that it may even be harmful. Why not simply use “Level 3 autism” to describe someone with high support needs? Isn’t “autism with co‑occurring intellectual disability” essentially the same thing? Critics of the term believe it is an ableist label that could reinforce stigma, limit expectations, and create more division within the autism community.
These concerns have some merit. There is some overlap between profound autism, Level 3 autism, and autism with intellectual disability. Adding another term may not lead to meaningful changes in recognition or services and could further complicate public understanding of what autism is. And it is possible that a funder or provider might see a “profound autism” label and decide that the money and effort required for progress are not worth the use of limited resources.
Proponents of the term argue that “Level 3” or “intellectual disability” does not come close to capturing the realities of their lives. They describe a qualitative difference in daily experience and in the level of support required. Being honest and specific about these needs, they argue, may actually help families access services and resources that are better prepared for the challenges they face.
Simply put, without a clear way to identify those with the most intensive needs, families and caregivers will continue to struggle to access appropriate services. Research suggests that about 27% of autistic individuals meet criteria for profound autism, yet only 6% of clinical studies include them. They are often excluded from community‑based programs that claim to be inclusive because their support needs are so high. Much of the mainstream autism narrative focuses on independence, employment, and social inclusion—goals that are meaningful for many autistic people but do not reflect the realities of those who require lifelong, comprehensive care. Families supporting individuals with profound autism navigate complex medical needs, behavioral challenges, limited respite options, and systems that were not designed with them in mind. Recognizing this population is not about limiting potential; it is about ensuring that support systems are equitable and responsive. In a world increasingly committed to listening to autistic voices, those who cannot speak for themselves are being increasingly drowned out.
As we approach Profound Autism Day on March 17, it is my hope that we can all agree on a fundamental truth about the rights of autistic people: every autistic person deserves to be heard, valued, and supported. Their experiences deserve respect, their challenges are real, and their lives are meaningful. When those experiences are uncomfortable or difficult to witness, we have a responsibility not to look away but to ask how we can respond with compassion and action. Support and intervention should help every individual reach their happiest, healthiest, and most fulfilling life—whether that looks like college, a career, and a family, or a day program and a group home. When an autistic self‑advocate calls themselves “neurospicy,” we should respect their self‑expression. And when a caregiver of a child who bites themselves hundreds of times a day and wears diapers into their teen years expresses trauma and exhaustion, we should respond with empathy. Both perspectives are real, both have value, and both deserve space in this conversation. Autism is profoundly diverse, and no single voice or label captures every experience. Acknowledging one experience in no way negates the importance of another.
When we acknowledge the full spectrum of autism, including those with the highest support needs, we create room for better policies, more appropriate resources, and a fuller understanding of what autism is. By embracing this perspective, communities can help ensure that every autistic person can live a life filled with safety, connection, and meaningful support.
For more information on the work being done to advocate for resources and support for those with profound autism, please visit The Profound Autism Alliance and the New Jersey Chapter of the National Council on Severe Autism.
And reach out to info@totalisbh.com to learn whether in‑home ABA therapy can help you better support your autistic child’s growth and learning.
