ADD Symptoms Vs. ADHD Symptoms: What’s the Difference?

27 Jan 2018

Attention deficit disorder is a complex condition with two distinct presentations, both of which are officially known as ADHD. ADD is the term commonly used to describe symptoms of inattention, distractibility, and poor working memory. ADHD is the term used to describe additional symptoms of hyperactivity and impulsivity. Both are included in the medical diagnosis of ADHD.





Q: What’s the Difference Between ADD and ADHD?


A: The term ADD is commonly used to describe what doctors call ADHD, Predominantly Inattentive Type. This quieter presentation of attention deficit disorder — commonly associated with symptoms of poor working memory, inattention, distractibility, and poor executive function — is more common among girls and women and is not associated with hyperactivity.


The term ADHD is common used to describe what doctors call ADHD, Predominantly Hyperactive Type. The symptoms associated with this diagnosis align more closely with the stereotypical understanding of ADHD: a squirmy, impulsive individual (usually a child) bursting with energy who struggles to wait his or her turn.


Technically speaking, ADD is no longer a medical diagnosis. Since 1994, doctors have been using the term ADHD to describe both the hyperactive and inattentive subtypes. Still, many parents, teachers, and adults continue to use the term ADD when referring to inattentive symptoms and presentations of attention deficit disorder.

Q: What Are the 3 Types of ADHD?


A. ADHD, Primarily Inattentive Type. People who describe themselves as having ADD most likely have inattentive type ADHD. Symptoms include forgetfulness and poor focus, organization, and listening skills. Inattentive ADHD often resembles a mood or anxiety disorder in adults, while it’s seen as spacey, apathetic behavior in children, particularly girls.


According to the Diagnostic and Statistical Manual of Mental Disorders-V (DSM-V), six of the following symptoms must be present to warrant a diagnosis of ADHD, Primarily Inattentive Type:


  • Often fails to give close attention to details, or makes careless mistakes

  • Often has difficulty sustaining attention

  • Often does not seem to listen when spoken to

  • Often does not follow through on instructions and fails to finish projects

  • Often has difficulty organizing tasks and activities

  • Often avoids, dislikes, or is reluctant to engage in tasks that require sustained mental effort

  • Often loses things necessary for tasks/activities

  • Is often easily distracted

  • Is often forgetful in daily activities


If you think you have Primarily Inattentive Type ADHD, take our self-test and share your results with a medical professional.

B. ADHD, Primarily Hyperactive-Impulsive Type. This sub-type encompasses many of ADHD’s stereotypical traits: a child (usually a boy) bouncing off the walls, interrupting in class, and fidgeting almost constantly. In reality, only a small portion of children and adults meet the symptom criteria for this type of ADHD.


According to the DSM-V, six of the following symptoms must be present to warrant a diagnosis:



  • Fidgets with hands or feet or squirms in seat

  • Leaves seat in classroom or in other situations in which remaining seated is expected

  • Runs about or climbs excessively in situations in which is it inappropriate; feelings of restlessness in teens and adults

  • Has difficulty playing or engaging in leisure activities quietly

  • Appears “on the go” or acts as if “driven by a motor.”

  • Talks excessively

  • Blurts out answers

  • Has difficulty waiting for their turn

  • Interrupts or intrudes on others


C. Combined Type ADHD occurs if you have six or more symptoms each of inattentive and hyperactive-impulsive ADHD.


How Does Hyperactive-Impulsive ADHD Look Different than Inattentive ADHD In Everyday Life?


1. Inattentive ADHD Symptom 1: Careless Mistakes


A child with inattentive ADHD may rush through a quiz, missing questions he knows the answers to or skipping whole sections in his haste. An adult may fail to carefully proofread a document or email at work which leads to more problems.


2. Difficulty Sustaining Attention


A child with inattentive ADHD may have trouble staying focused during organized activities, like sports and games, or tasks, like picking up his room. An adult may struggle to maintain attention during lengthy readings or extended conversations.


3. Failure to Listen


Children and adults with inattentive ADHD may seem absent-minded when spoken to directly, even though there may not be an obvious distraction. Often does not follow through on instructions and fails to finish schoolwork, chores, or duties in the workplace (e.g., starts tasks but quickly loses focus and is easily sidetracked).


4. Difficulty with Instructions


Many children, teens, and adults with inattentive ADHD struggle to follow through on instructions, failing to finish schoolwork, chores, or other duties in the workplace.


5. Poor Organization


Organization can be a challenge for those with inattentive ADHD at any age – a child might struggle with keeping her locker organized; a teen may find it difficult to keep college applications straight; and ADHD adults might feel overwhelmed by work emails at the office. A lack of organization often goes hand in hand with messy work, poor time management, and a failure to meet deadlines.


6. Avoidance of Difficult Tasks


Adolescents and adults with inattentive ADHD often have a hard time completing projects that require sustained mental effort, like lengthy homework assignments, reviewing documents, and filling out forms.


7. Chronic Misplacer


Frequently misplacing important items, like keys, eyeglasses, cell phones, and school materials, can be a sign of inattentive ADHD in kids, adolescents, and adults.


8. Easily Distracted


Children with inattentive ADHD may become distracted in the classroom by extraneous stimuli, while adults may simply drift off into unrelated thoughts and lose focus on the task at hand.


9. Forgetful


Whether it’s remembering to take the trash out, pay a bill, or return an email, inattentive ADHD often presents as forgetfulness, especially in teens and adults.

Q: ADDitude Seems to Write Only About ADHD. Why Is That?

A: offers a wide range of articles about ADD and ADHD, which is the official, medical term used to describe attention deficit disorder — regardless of whether a patient has symptoms of hyperactivity. Because “ADD” is considered an outdated term by medical practitioners, we use term “inattentive ADHD” to describe the sub-type not associated with hyperactivity or impulsivity. We use the term ADHD to broadly mean both the inattentive and hyperactive/impulsive sub-types, and “hyperactive/inattentive ADHD” when appropriate as well.

How is ADHD Diagnosed?

If you think that you have one of the above three types of ADHD, you should see a medical professional for an official diagnosis. You can find more information in our comprehensive diagnosis guide.


Why Do More Women Have Inattentive Type ADHD Than Have Hyperactive-Impulsive ADHD?

ADHD isn’t gender-biased, but it often goes undiagnosed in girls. More women and girls have Inattentive Type ADHD than Hyperactive-Impulsive, which can trickier to diagnose. Young girls and women who struggle with inattentive symptoms are overshadowed by hyperactive boys, who demonstrate more stereotypical hyperactive ADHD behavior.


Instead of detecting their symptoms as ADHD, medical professionals frequently mistake them for mood disorders or anxiety. You can learn more about these symptoms, which include shame and disorganization, here.


If you think you or your daughter may have ADHD, take our ADHD test for women and girls and share your results with a medical professional.


Author: Allison Russo


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