What are the common symptoms of attention deficit hyperactivity disorder (ADHD)?

Symptoms of ADHD develop before the age of 12. Over time some symptoms may decrease, but usually carry on into adulthood. Symptoms are classified based on each subtype of ADHD. 
  • Difficulty/failure paying close attention to details
  • Careless mistakes in school work
  • Difficulty focusing in tasks/play
  • Appear not to listen, even when spoken to directly 
  • Difficulty with organization 
  • Difficulty following directions 
  • Failure to finish schoolwork or chores
  • Avoidance of tasks that require focus and increased mental effort
  • Frequently lose items needed for tasks/activities 
  • Easily distracted
  • Frequently forget to do some daily activities 
Impulsivity and hyperactivity 
  • Frequently fidgets, taps hands or feet, or squirms in seat
  • Over-talkative
  • Difficulty playing or doing activity quietly
  • Difficulty waiting turn 
  • Constantly in motion or on-the-go
  • Difficulty staying seated in the classroom and/or other situations 
  • Frequently interrupts; blurts out answers in class
  • Run around/climb in inappropriate situations 
  • Interrupt or intrude on others’ conversations, games, or activities 
  • Forgetful
  • Loses things frequently 
  • Takes frequent risks; acts without thinking 
*Individuals with combined presentation ADHD will experience symptoms from both subtypes* 
attention deficit hyperactivity disorder (ADHD) symptoms

  • "Attention-deficit/hyperactivity disorder (ADHD) in children." Mayo Clinic. Mayo Foundation for Medical Education and Research, 16 Aug. 2017. Web. 17 Aug. 2017.
  • "Attention-Deficit/Hyperactivity Disorder (ADHD) in Children.” | Johns Hopkins Medicine Health Library. Johns Hopkins Medicine Health Library, n.d. Web. 20 Apr. 2017.
  • “Attention Deficit Hyperactivity Disorder.” National Institutes of Health. National Institute of Mental Health, Mar. 2016. Web. 17 Aug. 2017. 
  • “Attention-Deficit/Hyperactivity Disorder (ADHD).” The Cleveland Clinic Foundation. Cleveland Clinic, 18 Oct. 2016. Web. 17 Aug. 2017.


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