Severe autism, sometimes called level 3 autism, can look very different from person to person. In general, it means someone needs significant daily support. Challenges may appear in communication, behavior, and how they interact with the world around them.
People with severe autism may experience:
- Limited or no speech – some may rely on alternative communication methods.
- Strong reliance on routines – changes in schedule can feel overwhelming.
- Intense behaviors – such as repetitive movements, meltdowns, or self-injury.
- Difficulty with social interaction – making eye contact, understanding emotions, or forming relationships may be very challenging.
- Sensory sensitivities – loud noises, bright lights, or certain textures may cause distress.
It’s important to remember that every individual is unique. While these signs are common, not everyone with severe autism will experience all of them. With the right support, many children and teens make meaningful progress in their daily lives.
At Connect N Care ABA, we provide personalized therapy services to help children, teens, and families thrive. Our programs are designed to meet kids where they are — offering guidance, structure, and encouragement. Services include:
Whether your child needs help developing communication skills, improving daily routines, or navigating social situations, our dedicated team is here for you in North Carolina and Virginia.
FAQs
1. Can a child with severe autism improve?
Yes. With consistent ABA therapy and family support, many children learn new skills and reduce challenging behaviors.
2. How is severe autism diagnosed?
A developmental specialist or psychologist typically uses behavioral assessments, observations, and parent input to confirm a diagnosis.
3. Is ABA therapy only for young children?
Not at all. ABA therapy is effective for teenagers too, especially for building independence and life skills.
Sources:

- https://www.autismspeaks.org/sensory-issues
- https://pmc.ncbi.nlm.nih.gov/articles/PMC3086654/
- https://www.autismspeaks.org/levels-of-autism
- https://www.verywellhealth.com/severe-autism-11722656
- https://childmind.org/article/understanding-the-levels-of-autism/
