Related Conditions

Comorbidity with autism spectrum disorder (ASD):

  • Anxiety (social anxiety)
  • Attention deficit hyperactivity disorder (ADHD)
  • Bipolar disorder
  • Clinical depression
  • Down syndrome
  • Fragile X syndrome (genetic disorder that causes intellectual disability)
  • Gastrointestinal symptoms (chronic constipation, abdominal pain, diarrhea and fecal incontinence)
  • Immune disorders
  • Intellectual disability (IQ below 70 at age 6 or older)
  • Macrocephaly and microcephaly (person’s head is different size than average)
  • Obsessive compulsive disorder (OCD)
  • Seizures and epilepsy
  • Sensory sensitivities
  • Sleep problems
  • Tourette syndrome (involuntary motor/verbal tics)
  • Tuberous sclerosis (abnormal growth in the brain and other organs)

Raising Children Network. (2016, June 23). Conditions that can occur with autism spectrum disorder. Retrieved from

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