Adult ADHD (Attention Deficit Hyperactivity Disorder) - Symptoms

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What are adult ADHD symptoms and signs?

What is thought to be partly the result of maturity, adults with ADHD may show little to no signs of hyperactivity. For those who do, symptoms and signs of hyperactivity, impulsivity, and inattention may resemble those that are exhibited by children and teens. However, how those symptoms are exhibited tends to vary with age. Symptoms of ADHD include the following:


  • Often makes careless mistakes or pays inadequate attention to detail
  • Trouble focusing during work or leisure activities
  • Does not appear to be listening when spoken to directly
  • Is often unable to complete directions, work tasks, or chores
  • Frequently has trouble organizing a task or activity
  • Has a tendency to avoid, dislike, or resist engaging in activities that require sustained attention
  • Often loses things that are necessary to complete tasks or activities
  • Easily distracted by extraneous or unrelated stimuli
  • Often forgetful


  • Frequently fidgety or moves hands or feet
  • Frequently has trouble remaining seated
  • Has a tendency to feel restless
  • Has difficulty participating in leisure activities quietly
  • Performs multiple activities at once
  • Excessive talking
  • Often interrupts others talking
  • Trouble waiting his or her turn
  • Frequently intrudes on others
Return to Adult ADHD (Attention Deficit Hyperactivity Disorder)

See what others are saying

Comment from: Carolynrmj, 25-34 Female (Patient) Published: October 08

I was diagnosed with ADHD when I was 26. It was at a routine psychiatrist visit when the doctor asked me why I was always fidgeting. He then asked me some questions about my childhood and that's when he/I realized that I had ADHD. I think that's when everything fell into place for me. I realized why I was how I was. I used Wellbutrin and it really helped me but I don't take it religiously. It's really hard sometimes for me to focus, to finish things I start, to not get distracted by everything else besides what I should be focused on. Sometimes my thoughts loop and I can't focus, I get thoughts stuck in my head and I repeat things over and over and sometimes its hell... But sometimes I'm ok and that's good. Most days are ok.

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Comment from: mittsmoomoo, 19-24 Female (Caregiver) Published: February 28

Life is so much more difficult for this young man with ADHD, he can"t focus, he has trouble taking simple orders, he forgets things, he needs to be reminded every day the same things that are so easy for others like take the trash out, take a shower, do laundry, etc. He has social problems, excessive behavior, impulsive behavior, many tasks sit unfinished. He feels very agitated most days, these are just a few things that he experiences in daily life.

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