Can non-invasive DNA testing detect fetal autism?

Non-invasive DNA testing is primarily used to screen for fetal genetic defects and hereditary diseases, such as Down syndrome and Patau syndrome, which may affect a child's intelligence and growth development. Non-invasive DNA testing cannot detect whether a fetus has autism. Autism is a complex neurodevelopmental disorder caused by multiple factors including genetic, environmental, and biological elements, and cannot be diagnosed through a single genetic test. Currently, autism diagnosis mainly relies on behavioral observation and clinical assessment of the child, rather than simple genetic screening. Therefore, non-invasive DNA testing cannot serve as a basis for predicting or diagnosing fetal autism.