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Autism is a developmental disorder that ranges from mild to severe. Rather than being defined as one particular disorder and set of symptoms, autism is referred to as autism spectrum disorder (ASD). Every child is unique with his own particular signs and symptoms.
As the parent or caregiver of a child with ASD, you have likely noticed some of the typical signs of autism. Children with autism often react differently to being touched, resist changes to routines, and engage in repetitive activities. However, it bears repeating that children with autism spectrum disorder have various symptoms. That said, you will likely notice that your child communicates differently than children without ASD.