#asktheexperts How can I find out what caused my child's autism? .

A. hi there are different reasons that can cause it : -having an immediate family member with autism. -genetic mutation -fragile X syndrome and other genetic disorders. -being born to older parents -low birth weight. -metabolic imbalances. -exposure to heavy metals and environmental toxins -a history of viral infection -fetal exposure to the medications valproic acid or thalidomide.