ADHD vs. ADD Symptoms: What’s the Difference?
Attention deficit disorder is a complex condition with two distinct presentations. 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.
What’s the Difference Between ADHD and ADD? Symptom Comparison
The term ADD is commonly used to describe what clinicians now diagnose as Predominantly Inattentive Type ADHD. This quieter presentation of attention deficit disorder — not associated with hyperactivity — is more common among girls and women. Common symptoms of “ADD” include:
- poor working memory
- poor executive function
The term ADHD is commonly used to describe what doctors now diagnose as Predominantly Hyperactive Type ADHD. 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.
Adults with hyperactive or impulsive ADHD may be
- have nervous energy
Technically speaking, attention deficit disorder (ADD) is no longer a medical diagnosis. Since 1994, doctors have been using the term ADHD to describe both the hyperactive and inattentive subtypes of attention deficit hyperactivity disorder1. Still, many parents, teachers, and adults continue to use the term ADD when referring to inattentive symptoms and presentations of the condition.
What Are the 3 Types of ADHD?
Symptoms of Inattentive ADHD
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 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)2, 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.
Symptoms of Hyperactive-Impulsive ADHD
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
Symptoms of 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 from Inattentive ADHD in Everyday Life?
1. Inattentive ADHD Symptom: 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. Inattentive ADHD Symptom: 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. Inattentive ADHD Symptom: 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. Inattentive ADHD Symptom: 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. Inattentive ADHD Symptom: 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. Inattentive ADHD Symptom: 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. Inattentive ADHD Symptom: Chronically Losing Things
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. Inattentive ADHD Symptom: 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. Inattentive ADHD Symptom: Forgetfulness
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.
ADDitude Seems to Write Only About ADHD. Why Is That?
ADDitudeMag.com 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 the 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 ADHD than Hyperactive-Impulsive ADHD. Young girls and women who struggle with inattentive ADHD 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.
If you think you or your daughter may have ADHD symptoms, take our ADHD test for women and girls and share your results with a medical professional.
1 Lange, Klaus W et al. “The history of attention deficit hyperactivity disorder.” Attention deficit and hyperactivity disorders (Nov. 2010). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3000907/
2 Symptoms and Diagnosis of ADHD. Diagnostic and Statistical Manual of Mental Disorders, 5th edition. American Psychiatric Association (2013). https://www.cdc.gov/ncbddd/adhd/diagnosis.html
Updated on October 4, 2019