Autism has become more common? – Autism and the Asperger’s Association

For yes, diagnoses has increased, says Sebastian. This does not mean that autism itself has become more common, nor that there is any increase in autism due to, for example, environmental factors.

– There is nothing to suggest that environmental factors would have affected so that there will be more individuals with autism. We have a study published in 2020 that looked at periods of 16 and 26 years and there we see nothing to suggest that environmental factors would be linked to an increase in the number of autism diagnoses.

Source: Autism has become more common? – Autism and the Asperger’s Association