Autism spectrum disorder (ASD) is categorised as a pervasive developmental disorder (PDD) (PDDs). These are characterised by limited and repetitive behaviour, as well as difficulties with social interaction and communication. In most cases, parents will first become aware of symptoms between the ages of two and three. Diagnosis can occur as early as 18 months in some cases. Some autism-related delays in development are detectable and treatable at even younger ages. However, some children with autism reach typical developmental milestones at a typical pace and then rapidly regress.
There is no single cause of autism; rather, it is the interaction of genetic and environmental factors that leads to the disorder. Infections like rubella that can spread to the foetus are among the causes for concern.
Symptoms of Autism: