Early signs of autism | Autism Speaks (2024)

One of the most important things you can do as a parent or caregiver is to learn the early signs of autism and become familiar with the developmental milestones that your child should be reaching.

The list below gives some examples of common types of behaviors you might see in children diagnosed with autism spectrum disorder (ASD).Notallautistic children will haveallthese behaviors, but most will have several of the behaviors listed below.That’s why professional evaluation is crucial.Additionally, some children without ASD might display some of these behaviors. But for those with ASD, these behaviors can be disruptive or challenging to daily life.

Early signs of autism | Autism Speaks (1)

Signs of autism in babies

By 6 months

  • Few or no big smiles or other warm, joyful and engaging expressions
  • Limited or no eye contact

By 9 months

  • Little or no back-and-forth sharing of sounds, smiles or other facial expressions

Early signs of autism | Autism Speaks (2)

Signs of autism in toddlers

By 12 months

  • Little or no babbling
  • Little or no back-and-forth gestures such as pointing, showing, reaching or waving
  • Little or no response to name

By 16 months

  • Very few or no words

By 24 months

  • Very few or no meaningful, two-word phrases (not including imitating or repeating)

Early signs of autism | Autism Speaks (3)

Signs of autism at any age

  • Loss of previously acquired speech, babbling or social skills
  • Avoidance of eye contact
  • Persistent preference for solitude
  • Difficulty understanding other people’s feelings
  • Delayed language development
  • Persistent repetition of words or phrases (echolalia)
  • Resistance to minor changes in routine or surroundings
  • Restricted interests
  • Repetitive behaviors (flapping, rocking, spinning, etc.)
  • Unusual and intense reactions to sounds, smells, tastes, textures, lights and/or colors

At what age is autism diagnosed?

Early signs of autism | Autism Speaks (4)

Age of autism diagnosis and early signs of autism can vary widely from child to child. Some children showearly signs of autismwithin the first 12 months of life. In others, autism signs may not show up until 24 months of age or later. Importantly, some children with ASD gain new skills and meet developmental milestones until around 18 to 24 months of age, and then they stop gaining new skills or lose the skills they once had.

The American Academy of Pediatrics (AAP), the leading pediatric health organization in the United States, recommends that all children be screened for autism at ages 18 months and 24 months,in addition to undergoing developmental and behavioral screenings during their regular well-child visits at 9 months, 18 months and 30 months. Research shows that by age 2, an ASDdiagnosis by an experienced professionalcan be considered reliable.

If you have concerns about your child’s development:

  1. Learn the signs.The Centers for Disease Control and Prevention (CDC)Act Early programprovides parents, childcare professionals and pediatric clinicians with free resources, in English and Spanish, for monitoring a child’s development. The program offers parent-friendly, research-based milestone checklists for children as young as 2 months of age. TheMilestone Tracker Appcan help parents track their child’s development and share the information with their pediatricians.
  2. Take theM-CHAT-R screening questionnaire.TheM-CHAT-R(Modified Checklist for Autism in Toddlers, Revised)can help you determine if a professional should evaluate your child. This simple online autism screening questionnaire, available on our website, takes only a couple minutes to complete. If the answers suggest your child has a high probability for autism, please consult with your child’s doctor.Watch the video below to see how the M-CHAT-R™helped Eileenget an autism diagnosisfor her son, Charlie.
  3. Schedule an appointment with your child’s pediatrician.If you have any concerns about your child’s development, don’t wait. Speak to your doctor now about screening your child for autism. You can use theAutism Speaks Resource Guideto find providers near you. While every child develops differently, early intervention can improve outcomes, often dramatically. For example, studies show that early intensive behavioral intervention improves learning, communication and social skills in young children with ASD.

Related resources

Contact the Autism Response Team

Autism Speaks' Autism Response Team can help you with information, resources and opportunities.

  • In English: 888-288-4762 | help@autismspeaks.org
  • En Español: 888-772-9050 | ayuda@autismspeaks.org
Early signs of autism | Autism Speaks (2024)

FAQs

Will my 7 year old autistic child ever talk? ›

Some may develop language and communication skills at later ages than their peers, and some may develop their language in a different order. Some autistic children will develop spoken language in a typical way, but they may need support in other areas of communication, such as social communication or fluency.

What does level 1 autism look like? ›

Children with autism level 1 often struggle with social interactions. They may find it difficult to initiate or maintain conversations, interpret nonverbal cues, or understand social norms. They may have limited eye contact, struggle with reciprocal play, and find it challenging to make friends.

Can you be autistic and speak early? ›

When I read aloud in class, the teacher often told me to slow down so the other children could keep up. Fortunately, the psychologist who diagnosed me with autism realized that not all autistic children start speaking late; some start speaking early.

What age do autistic speak? ›

Some children with autism may start talking at 12-16 months. Most don't start talking until later. Some will start talking between the ages of 2-3 years. Other children talk even later, and some children never learn to talk.

How late do autistic kids talk? ›

Some children who have autism may start using words earlier than other children, while others remain non verbal for years or even for life. On average, however, autistic children start forming words around 3 years of age.

What percentage of late talkers are autistic? ›

30-40% of late-talkers do have a physical or developmental delay or disorder. Less than 20% of late-talkers are on the autism spectrum. Some reports suggest the number is as low as 9%.

What is type 2 autism? ›

Level 2 autism is like level 1, but the symptoms are more severe, and the child requires more support. An autistic level 2 individual may show the following impairments: [v] Using fewer words. Missing nonverbal communication cues. Not responding or walking away during a conversation.

How can you tell if someone is slightly autistic? ›

Common signs of autism in adults include:
  1. finding it hard to understand what others are thinking or feeling.
  2. getting very anxious about social situations.
  3. finding it hard to make friends or preferring to be on your own.
  4. seeming blunt, rude or not interested in others without meaning to.
  5. finding it hard to say how you feel.

What does level 3 autism look like? ›

Most children with level 3 autism exhibit self-stimulatory and repetitive behaviors. These behaviors may include moaning, flapping, door slamming, or violent rocking, which are potentially extreme and difficult to manage. There may also be physical symptoms such as sleeplessness, epilepsy, and gastrointestinal issues.

What is considered an early talker? ›

Early Language Development

Gifted children tend to begin talking early. While most children say their first word at around 1 year of age, gifted children may begin speaking when they are 9 months old. 2 Some parents report that their children said their first word even earlier than that, as early as 6 months of age.

What is Einstein syndrome? ›

What is Einstein syndrome? Einstein syndrome is a condition where a child experiences late onset of language, or a late language emergence, but demonstrates giftedness in other areas of analytical thinking. A child with Einstein syndrome eventually speaks with no issues, but remains ahead of the curve in other areas.

What is hyperlexia in autism? ›

3 min read. Hyperlexia is when a child starts reading early and surprisingly beyond their expected ability. It's often accompanied by an obsessive interest in letters and numbers, which develops as an infant.‌ Hyperlexia is often, but not always, part of the autism spectrum disorder (ASD).

Do autistic kids laugh? ›

Of course, autistic individuals laugh when they are happy, or if they find something funny. However, they often laugh to release fear, tension and anxiety. What is very difficult for their parents to comprehend (and accept) is that they might laugh or giggle non-stop when someone is crying.

When do autistic babies say mama? ›

A baby may say "dada" or "mama" as early as six to twelve months of age. If a child does not say single words by 16 months or two-word phrases by age two, parents should consider visiting their pediatrician for an inquiry.

What month is autism speaks? ›

NEW YORK, April 1, 2024 /PRNewswire/ -- This April, in recognition of World Autism Month, and with its history of standing alongside the autism community, Autism Speaks is launching its #ActFearlessly campaign and encouraging the public to sign its pledge, share their stories, advocate for legislation and support the ...

What age do autistic children stop talking? ›

Various studies showed around 25-30 percent of kids with ASD stop speaking after they start to say some words, usually before reaching the age of two. Some children lose social development instead of language, and some lose both.

What percentage of autistic children never speak? ›

MYTH: Nonverbal or Nonspeaking People with Autism are Intellectually Disabled. Just because someone is nonspeaking, does not mean they're non-thinking. Around 25 to 30 percent of children with autism spectrum disorder are minimally verbal or do not speak at all.

Why do some kids with autism never talk? ›

Some children may have problems with auditory processing, the system by which their brains interpret the words that they hear. Others may struggle with the motor skills needed to form words. For example, speech apraxia affects people's ability to plan and coordinate the mouth and tongue movements used to talk.

Will my autistic child ever catch up? ›

Early medical challenges may slow development, but most children are able to catch up to their same-age peers. Certain correctable challenges, such as difficulty with hearing, can slow early development but have little impact on long-term development once addressed.

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