In children, at least six of the symptoms mentioned need to be present to qualify for a diagnosis; in adults, only five. In both cases, these symptoms need to be present for more than 6 months and interfere with academic, occupational, or social functioning.[1]
How is ADHD diagnosed?
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•Last Updated: May 16, 2025
ADHD is diagnosed in children when at least 6 symptoms are present, whereas adult diagnosis requires 5 symptoms. These symptoms must persist for over 6 months and disrupt academic, occupational, or social functioning.