> Boys with autism who have the most distinctive facial features cluster into two groups with very different sets of autism symptoms, the researchers found.

> Boys in one group tend to have wide mouths, combined with a short distance between the top of the mouth and the bottom of the eyes. They also show severe symptoms of autism, including language impairment, intellectual disability and seizures.

> By contrast, those in the second group have broad upper faces and a short philtrum. They are more likely to be diagnosed with Asperger syndrome, and to have fewer cognitive impairments and language difficulties compared with the first group.

https://www.thetransmitter.org/spectrum/facial-features-provide-clue-to-autism-severity/