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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