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Causes

Autism spectrum disorder has no single known cause. Given the complexity of the disorder, and the fact that symptoms and severity vary, there are probably many causes.

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Genetic problems

Several different genes appear to be involved in autism spectrum disorder. For some children, autism spectrum disorder can be associated with a genetic disorder, such as Rett syndrome or fragile X syndrome. For others, genetic changes may make a child more susceptible to autism spectrum disorder or create environmental risk factors.

Still other genes may affect brain development or the way that brain cells communicate, or they may determine the severity of symptoms. Some genetic problems seem to be inherited, while others happen spontaneously.

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Environmental factors

Researchers are currently exploring whether such factors as viral infections, complications during pregnancy or air pollutants play a role in triggering autism spectrum disorder.

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Childhood Vaccines?

One of the greatest controversies in autism spectrum disorder is centered on whether a link exists between ASD and certain childhood vaccines, particularly the measles-mumps-rubella (MMR) vaccine. Despite extensive research, no reliable study has shown a link between ASD and the MMR vaccine.

Avoiding childhood vaccinations can place your child in danger of catching and spreading serious diseases, including whooping cough (pertussis), measles or mumps.[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row]