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Autism Statistics and Facts in 2024

Updated: May 14

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Key facts about Autism:-

  • Autism is one of a group of serious developmental problems called autism spectrum disorders (ASD) that appear in early childhood — usually before age 3.

  • Though symptoms and severity vary, all autistic conditions affect an individual's ability to communicate and interact with others.

  • The adult life of an autistic person is very much different from everyone else’s. The challenges your child faces now may seem like they would impact the life of your child as an adult and they probably will, but with timely transition planning and intervention, things can be easier for them.

  • Along with care of autistic individuals at home and several actions need to be implemented at community and societal level for better accessibility, support, and inclusivity.

  • Several researchers have concluded that with timely diagnosis and intervention 3% to 25% of autistic individuals lose their ASD diagnosis and develop social, cognitive, and adaptive skills.

Illustration for autims in india infographic
Image credit: Vihaara medicare

Statistics of Autism

Autism is the third most common developmental disorder after intellectual disability, and Cerebral palsy.
In India, about 18 million individuals are diagnosed with autism as per a report by ETHealthWorld.
The estimated prevalence of autism is about 1 in every 68 children.
Boys are more commonly affected by autism; the ratio is about 1:3.
Worldwide, as per CDC surveillance conducted in 2020, about 1 in 36 children were diagnosed with autism.
ASD is 4 times more commonly diagnosed in boys than girls.

What are the signs of Autism?

Autistics have difficulty in three main domains: social interaction, behaviour, and learning. A few characteristic signs of autism are-

Social interaction and communication skills

  • Delayed response

  • Difficulty sharing interests, activities, or emotions.

  • Difficulty understanding social cues

  • Difficult in adjusting in social settings.

  • Sensory overstimulation.

Language and learning skills

  • Repetition of words or phrases

  • Speech delays.

  • Difficulty in two-way conversation.

  • Unusual tone when they talk- a singsong voice or robotic voice.

  • Difficulty making eye contact while talking.


  • Being used to things being a certain way

  • Having ritualistic behavior

  • Fascination by objects like moving wheels or parts of objects.

  • Having lasting intense interest in certain topics like numbers, facts, or details.

  • Hypersensitivity or under sensitivity.

Strengths of individuals with autism

  • Being strong visual and auditory learners.

  • Retaining memory for certain information for long durations.

  • Excellent in math, science, music, or art.

It is not compulsory that an individual will show all the characteristic signs, a formal assessment is very important for the diagnosis of autism.

illustration for signs of mild autism in adults

Can you outgrow autism?

There is no definite yes or no answer for this, it's more about working with and growing into the symptoms of autism. According to the DSM criteria, autism is often diagnosed in the early years of age and persists throughout a person’s life. Some people understand it and learn to mask it at least in some situations.

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Sounderic provides online speech therapy sessions for children with various communication disorders. We would love to help you. Get in touch with us on WhatsApp at +919644466635 or schedule a consultation with us at

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