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ADD vs ADHD: What’s the Difference

Dr. Henry Bradford
Medical Reviewer:
Dr. Henry Bradford
MD

Highlights

  • ADHD shows up in different ways. The inattentive subtype of ADHD is the condition that used to be known as ADD. 
  • Although the term ADD is still used informally, it is no longer used as an official diagnosis in current diagnostic manuals.
  • ADHD is diagnosed based on formal criteria and can be managed through therapy, medication, lifestyle changes, or their combination.

Attention deficit disorder (ADD) and attention-deficit/hyperactivity disorder (ADHD) are often used interchangeably when describing conditions with attention, focus, and activity problems.

While this can be given a “pass” when used informally, clinicians no longer consider ADD to be a valid medical diagnosis of its own, because the term can be confusing for both patients and healthcare providers. Let’s explore the history of these terms and their differences.

Wondering if you may have ADHD? See a licensed medical provider online for evaluation within 24 hours.

ADD vs ADHD: What These Terms Mean

In the past, ADD was used to describe a condition where a person had problems with attention, such as forgetfulness and difficulty being organized, but no restlessness or hyperactivity. 

Diagnostic terminology evolved through revisions of the Diagnostic and Statistical Manual of Mental Disorders (DSM), with ADHD becoming the standard term[1] following updates in the 1980s. The core symptoms of ADHD[2] are: inability to focus, being restless, and being impulsive.

So, what was previously called ADD is now recognized as a type of ADHD where hyperactivity and impulsivity are less prominent. This is, perhaps, why people still use the term informally.

ADHD Presentations

In 1994, clinicians released a new edition of the guide that governs the diagnosis and classification of illnesses known as the Diagnostic and Statistical Manual of Mental Disorders (DSM). That guide, DSM-IV, grouped ADHD into three subtypes, having similar yet distinct features[3] . Let’s review them in more detail.

Predominantly Inattentive Presentation

This type of ADHD was previously called ADD.

If you have a predominantly inattentive ADHD type, you may not meet full criteria for hyperactive-impulsive symptoms, though some traits may still be present. However, you may have problems with sustaining attention and focusing on tasks. You may also be disorganized, get distracted easily, forget things often, and zone out of conversations abruptly.

"The term ‘ADD’ is no longer used as a formal diagnosis, but it is still commonly referenced by patients and clinicians. Clinically, what people once called ADD is now understood as the ‘predominantly inattentive’ subtype of ADHD where features of hyperactivity and impulsivity may be less pronounced."
Dr. Henry Bradford, MD
Medical provider at MEDvidi

Predominantly Hyperactive-Impulsive Presentation

Hyperactive-impulsive ADHD makes you have persistent restlessness and difficulty remaining still. As such, you may have problems settling down in one spot or “staying put.”

You might notice that you are almost always on the move. Always doing something. Some people may even describe you as being impatient, restless, impulsive, talkative, fidgety, loud, or “unbearable.” When having a conversation, you may speak out of turn, as though you just have to say something quickly. 

However, you usually wouldn’t have pronounced problems focusing on a task. At least not as much as people with predominantly inattentive ADHD.

Combined Presentation

If you have a combined type of ADHD, you will experience mixed symptoms[4] . You may be impulsive, unable to focus, and hyperactive all at once, although not in equal measure.

Also, your symptoms and how severe they get can change from time to time.

Discuss your symptoms to learn if you have ADHD and receive a treatment plan tailored to your needs.

How ADHD Can Look Day to Day

The day-to-day symptoms of ADHD can be easier to spot in children[5] . If you are caring for a child, you may notice poor school grades, problems with attention, and random outbursts of energy.

In adults, ADHD symptoms can be harder to recognize, but here are possible patterns to look out for.

Inattentive ADHD

If you have inattentive ADHD, you may notice that you have problems managing and keeping track of time[6] , a phenomenon called ADHD time blindness.

You may plan to be done with a task by, let’s say, 8 a.m., only to get distracted by something else that steals at least 3 hours of your time. In the end, you often find yourself doing things at the “last minute” and missing deadlines altogether. This can cause you to struggle at work[7] and make 24 hours seem too short, leading to stress and frustration.

While using your phone, you may notice that you never stay on the same app at a time. One minute you’re on one app, and the next you’re swiping through another. Reading one article, or story, or book at a time may also be challenging, so you find yourself struggling to complete it[8] . The same goes for TV series. 

You may also struggle to organize your things, since it’s hard to focus. When you eventually get to tidying, it won’t be uncommon for your room to become untidy literally minutes after you cleaned it, making you wonder whether you are just an untidy or lazy person.

Sometimes, you may also feel “careless” because your stuff keeps getting missing. You may find yourself returning home to pick up the same thing over and over again and forgetting where or what it was you were looking for.

Hyperactive-Impulsive ADHD

Impulsive ADHD is likely to show in your choices and judgement[9] . You may find it hard to remain seated or still for a long time, or notice that you are always on the “go.” One minute you are seated somewhere and the next you are out of the door.

You may buy stuff without planning[10] . You could say things without thinking more often than others, sometimes oversharing or even making promises in the heat of the moment that you later forget to keep.

You may also have problems listening to other people, speaking out of turn just because there are a lot of ideas you have to let out. You may also snap often, or say rude things you immediately regret.

Since ADHD can make it hard for you to regulate your emotions, the ongoing mental workload, stress, frustrations, and fears can make you feel overwhelmed.

How ADHD Diagnosis Works

A clinician diagnoses ADHD by comparing your symptoms with what is contained in the guide book, the DSM[11] . This manual contains a list of criteria you must meet for a healthcare provider to diagnose you with ADHD. These criteria are grouped into two domains: inattention and hyperactivity/impulsivity. The diagnosis is based on meeting a required number of symptoms within one or both categories, depending on the presentation

A healthcare professional looks at how long you have had your symptoms, how severe they are, when and how they show up, and the possibility that they are being caused by something other than ADHD.

The checklist used for diagnosing ADHD differs by age group. Children need to have at least 6 symptoms to be diagnosed with ADHD, while adults, including teenagers older than 17 years old, need to have at least 5.

The clinician may get information about your symptoms through a clinical interview, online questionnaires, rating scales, clinical observations, information provided by your relatives, and by exclusion of similar mental health conditions. 

You may want to go for a check up if you notice that you have problems focusing, organizing, or prioritizing time, and these cause difficulties at work, relationship friction, and poor choices. If you have these symptoms, consider scheduling an appointment; at MEDvidi, you can see a licensed medical provider for online ADHD evaluation and treatment as soon as within 24 hours.

Want to see how likely it is that you have ADHD? Take a free 5-minute ADHD assessment test.

Treatment and Support Options

There are many ways to manage ADHD. Your treatment may include[12] medications, therapy, and other interventions to help manage symptoms.

Treatment for ADHD varies from person to person. So even though you may know other people with ADHD, your treatment might not be the same as theirs. Discussing the nature and severity of your symptoms with your care team helps them determine the right treatment options for you.

"A successful fluoxetine taper is typically guided by both the current dose and the duration of treatment, with longer exposure and higher doses warranting a more gradual reduction. Even a well-designed taper may need adjustment based on individual tolerance, and changes should be made in coordination with a healthcare provider."
Dr. Henry Bradford, MD
Medical provider at MEDvidi

Conclusion

Attention deficit disorder (ADD) is no longer considered as a standalone medical diagnosis, although the term is still being used informally to describe problems with focus and activity. The predominantly inattentive presentation of ADHD describes what used to be known as ADD. And if you think you might have ADHD, seek professional evaluation and support.

Frequently Asked Questions

No, ADD is not the same as ADHD. The term ADD is an older name that loosely describes a kind of ADHD. Some people still use the term informally, but it is no longer used by clinicians.

No, ADD no longer exists as a diagnosis. The condition formerly known as ADD is now considered a type of ADHD.

ADD stopped being a diagnosis in the 1980s, when clinicians reclassified it as a type of ADHD.

What was known as ADD is now known as ADHD. The name was changed to make the diagnosis more straightforward.

ADD is the old name for a predominantly inattentive type of ADHD. Today, all ADHD types, whether they involve inattention or hyperactivity, are classified together as ADHD. So, ADD is the old name for a type of ADHD.

ADD stands for attention deficit disorder. It is an old term used to describe certain types of attention-deficit/hyperactivity disorder (ADHD), but it is no longer used.

Sources

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12 sources
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Dr. Henry Bradford
Medical Reviewer:
Dr. Henry Bradford
MD
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This article contains scientific references. The numbers
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