More American children are being diagnosed with attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD), but experts suggest the increase may have more to do with improved awareness and diagnostic practices than a sudden rise in the conditions themselves.
According to the CDC, approximately 7 million American children ages 3–17 (11.7%) currently have an ADHD diagnosis, based on 2024 data. Meanwhile, the latest autism estimates show that approximately 1 in 31 American 8-year-olds has been identified with autism, compared with 1 in 36 in the previous report.
Experts point to better screening, broader diagnostic understanding and greater recognition of symptoms in children who might previously have been overlooked. These changes reflect improvements in outreach, screening, and reducing the stigma surrounding autism diagnoses, particularly in underserved communities.
Why ADHD and Autism Symptoms Can Overlap
Although ADHD and autism are separate neurodevelopmental conditions, they share several characteristics that can make distinguishing between them difficult. Children with either condition may struggle with concentration, emotional regulation, executive functioning, and social interactions.
A recent report highlights research suggesting that children with ADHD and autism can experience similar social and executive-function challenges, although the underlying causes may differ. One expert emphasizes that “ADHD and autism are two separate and distinct conditions” that frequently occur together, making accurate identification particularly important.
For example, children with ADHD may struggle socially because of impulsivity, distractibility, or interrupting conversations. Autistic children may experience similar difficulties because of challenges interpreting social cues, understanding emotions, or navigating changes in routine.
How Can Parents Tell If Their Child Has ADHD or Autism?
Parents who notice persistent developmental or behavioral differences should discuss their concerns with their child’s pediatrician. Warning signs can include difficulty maintaining attention, excessive movement, impulsive behavior, repetitive movements, sensory sensitivities, and challenges with social communication.
A comprehensive evaluation can help determine whether a child has ADHD, autism, or both. According to Bierman Autism Centers, approximately 43.8% of children with autism also have co-occurring ADHD, demonstrating why considering both conditions is important.
Parents should also remember that no single behavior automatically indicates a diagnosis. Seeking professional guidance can help families better understand their children’s individual needs and access appropriate support.
