Mental health condition
Autism
Autism is a neurodevelopmental condition that affects communication, social interaction, behavior and sensory experience. Learn about signs, diagnosis in children and adults, and support.
What is autism?
Autism, clinically called autism spectrum disorder (ASD), is a neurodevelopmental condition. It affects how a person communicates, interacts with others, and experiences sensory input. Many autistic people and advocates describe autism as a natural variation in how brains work, with both strengths and challenges.
Signs
Signs of autism generally fall into two areas:
- Social communication and interaction: differences in eye contact, conversation, understanding unspoken social rules, or developing relationships.
- Restricted or repetitive behaviors and interests: repetitive movements or speech, a strong preference for routine, intense focused interests, and sensory sensitivities (for example, to sound, light or textures).
These signs can occur with autism, but only a qualified professional can provide a diagnosis.
Diagnosis
In children, developmental screening and assessment by specialists such as developmental pediatricians, child psychologists or psychiatrists can lead to diagnosis — sometimes by age two. Adults can be assessed by clinicians experienced in adult autism, often through interviews, questionnaires and developmental history.
Support
There is no one-size-fits-all approach. Support may include speech and language therapy, occupational therapy, educational and workplace accommodations, and therapy for co-occurring conditions such as anxiety or ADHD. Therapists who adapt their approach for autistic clients can be especially helpful.
Self-care
Understanding your sensory needs, planning recovery time after demanding social situations, and connecting with autistic communities can reduce stress and support well-being.
Related conditions
Find care
Find care for autism
Compare types of care — from online therapy to psychiatry — and learn what to consider before choosing a provider.
Explore care optionsWhen to seek professional help
Consider contacting a doctor or licensed mental health professional if:
- You or your child have social communication differences and repetitive behaviors or intense interests that affect daily life.
- You suspect you may be autistic and want to understand yourself better.
- You are experiencing anxiety, depression or burnout alongside autistic traits.
Only a qualified professional can make a diagnosis, and reaching out early is always reasonable.
If you’re thinking about harming yourself or are in immediate danger, call your local emergency number. In the US, call or text 988 (Suicide & Crisis Lifeline).Crisis resources in other countries.
Explore care optionsFrequently asked questions
Can adults be diagnosed with autism?
Do vaccines cause autism?
References
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About this article
Written by
ExploreMentalHealth Editorial Team
Our editors research and write every article using government health agencies, professional medical organizations and peer-reviewed research, following our published editorial standards.
- First published
- September 4, 2026
- Last updated
- September 19, 2026
- Last medically reviewed
- Review pending