Environment

Taking antidepressants during pregnancy is unlikely to raise the risk of having a child with autism.

About 1 in 100 children in India under age 10 may have autism, and nearly 1 in 8 at least one neurodevelopmental condition.

High blood pressure, preterm birth and other pregnancy complications may increase the risk of autism.

Children born to women who received a routine vaccine while pregnant are not at an increased risk of autism.

Children born to women who had diabetes or high blood pressure while pregnant may be at an increased risk of autism.

Brain networks in newborns may reflect the degree of inflammation their mothers experienced during pregnancy.

Epilepsy in infancy and the use of prescription medications during pregnancy are the strongest of 29 known risk factors for autism in a child.

Folic acid, a B vitamin, may lower autism risk and ease features of the condition.