Autism spectrum disorder - Symptoms and causes - Mayo Clinic
Autism spectrum disorder is a condition related to brain development that impacts how a person perceives and socializes with others, causing problems in social interaction and communication. The disorder also includes limited and repetitive patterns of behavior.

Autism - Wikipedia
Autism, or autism spectrum disorder[a] (ASD), is a neurodevelopmental disorder characterized by repetitive, restricted, and inflexible patterns of behavior, interests, and activities, as well as deficits in social interaction and social communication.

Autism (ASD): Symptoms, Causes, Tests, Treatment & More - Healthline
Autism spectrum disorder (ASD), or autism, is a broad term used to describe a group of neurodevelopmental conditions. These conditions are characterized by differences in communication and social...

Signs and Symptoms of Autism Spectrum Disorder
Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. People with ASD often have problems with social communication and interaction, and restricted or repetitive behaviors or interests. People with ASD may also have different ways of learning, moving, or paying attention.

Autism: Symptoms, Causes, Types, and Testing - WebMD
What Is Autism? Autism, also called autism spectrum disorder (ASD), is a complex developmental condition that affects how people interact, communicate, learn, and behave. People with ASD...

Autism Spectrum Disorder - National Institute of Mental Health ... - NIMH
Autism spectrum disorder (ASD) is a neurological and developmental disorder that affects how people interact with others, communicate, learn, and behave. Although autism can be diagnosed at any age, it is described as a “developmental disorder” because symptoms generally appear in the first 2 years of life.

Autism - World Health Organization (WHO)
The abilities and needs of autistic people vary and can evolve over time. While some people with autism can live independently, others have severe disabilities and require life-long care and support. Autism often has an impact on education and employment opportunities.

Autism Spectrum Disorder (ASD) Symptoms & Causes - Cleveland Clinic
Autism spectrum disorder (ASD) is the full medical name for autism. A book called the DSM-5-TR defines autism spectrum disorder as a difference in brain functioning that affects how a person communicates and interacts with others.

Autism spectrum disorder (ASD) | Autism Speaks
What is autism? Autism, or autism spectrum disorder (ASD), refers to a broad range of conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication. According to the Centers for Disease Control, autism affects an estimated 1 in 36 children and 1 in 45 adults in the United States today.

What is autism? - NHS
Being autistic does not mean you have an illness or disease. It means your brain works in a different way from other people. It's something you're born with. Signs of autism might be noticed when you're very young, or not until you're older. If you're autistic, you're autistic your whole life.