It is said that there could be many causes of autism, but it is developed from a combination of genetics and environmental factors. Just because something can increase the “risk” of autism, does not mean a child will develop it.

Genetic and environmental factors influence autism by affecting crucial times of early brain development. It is believed at this time that vaccines do not play a part in the development of autism. It is said that 60-90% of your risk of autism is from a genome, but that is not always the case. If you have a child with autism you are more likely to have another with ASD. If your child has autism it is recommended that genetic testing is done

Environmental factors that are linked to asd are

-advanced parental age

-prenatal exposure to air pollution or certain pesticides

-maternal obesity, diabetes, and immune system disorders

-Extreme prematurity or very low birth weight

-Birth complications leading to periods of oxygen deprivation