What Are The Signs And Symptoms Of Autism?

Every person who has autism will be different and will have different signs and symptoms of the disorder.

It is important to remember that what is considered autistic in one child may not appear in another child who is considered autistic.

As was mentioned before, because there is no medical test to determine if a person has autism, diagnosing it and the other disorders on the autism spectrum can be tricky.

There are however, common signs and symptoms that children who have ASD will have.

Below are the three main categories of symptoms of ASD:


  • little or no eye contact, facial expressions, and/or body language
  • unable to form friendships with their peers
  • not willing or able to share enjoyment or accomplishments with others
  • unable to relate or share emotions on a social level


  • doesn’t talk or doesn’t use language properly
  • doesn’t respond to voices or other sounds
  • no attempt to replace language with another form of communication
  • unable to talk with another person even if they have the ability to talk
  • repeating words or having echolalia (echoing words without meaning)
  • no imaginative play (doesn’t pretend or play make-believe games)


  • obsessed with a certain topic or object
  • focused on specific routines or rituals that have no practical function
  • repetitive actions or movements like flapping, spinning, and/or body movements
  • intense preoccupation with parts of objects
  • extra sensitive to certain sounds, smells, tastes, or textures

NOTE: Not all children who are diagnosed with autism show symptoms from early on. About a half of children with autism appear to develop normally when they are between 18 and 24 months old and don’t have symptoms until their early childhood (24 months to 6 years).

These children are often said to have “regressive” autism (or atypical autism). It is not sure whether autism is present at birth and doesn’t show up until much later or if a child can develop the disorder later on.

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