Conditions comorbid to autism

There are several conditions comorbid to autism, which is a condition classified as a neurodevelopmental disorder that begins in early childhood, persists throughout adulthood, and is characterized by difficulties in social communication and restricted, repetitive patterns of behavior. In medicine, comorbidity is the presence of one or more additional conditions co-occurring with the primary one, or the effect of such additional conditions. Distinguishing between autism and other diagnoses can be challenging because the traits of autism often overlap with symptoms of other conditions, and the characteristics of autism make traditional diagnostic procedures difficult. Examples of comorbidities include attention deficit hyperactivity disorder, anxiety disorders, and epilepsy.

Autism is associated with several genetic disorders, perhaps due to an overlap in genetic causes. About 10–15% of autism cases have an identifiable Mendelian (single-gene) condition, chromosome abnormality, or other genetic syndrome, a category referred to as syndromic autism.

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