7 Types of ADHD in Adults

John Parker
December 18, 2023
10 min
a man in an office setting struggling with ADHD in a professional environment

ADHD is not just a universal condition. It is like a multicolored mosaic made up of various unique pieces. In adults, the condition can manifest in 7 types of ADHD. Each has its characteristics and challenges. From the daydreamer who struggles to stay focused on tasks to the whirlwind of energy that can't sit still, there's more to ADHD than meets the eye.

Imagine a puzzle with seven pieces. Each of these pieces represents a different aspect of adult ADHD. Some fragments may be due to inattention. They make it hard to focus on anything for long periods. Others may be due to hyperactivity. Then restlessness comes to the forefront. Some combine both inattention and hyperactivity. It creates a complex mix of symptoms.

In this study, we will journey through the world of ADHD. You will be able to understand these seven unique pieces of the ADHD puzzle and find out if there is a spectrum for ADHD.

7 Types of ADHD: Overview

ADHD is a common disorder. It affects not only adults but children as well. It's like the brain works a little differently. People with ADHD often have difficulty concentrating on a task. People can't control their impulses and can't move correctly.

As we mentioned above, it is a puzzle comprising seven separate pieces. Each of them represents a unique way of manifesting ADHD in adults. To understand these pieces, we need to first understand the big picture. At its core, we can divide ADHD into three main categories:

  • Inattention
  • Hyperactivity-impulsivity
  • A combination of both types

These categories lay the foundation for the 7 types of ADHD. So, let's look and get an idea of how each type affects a person. 

1. Inattentive Presentation

Inattentive Presentation of ADHD is like a mind that wanders. People with this type need help to stay focused. They often need to be more careful, remember things, and work to keep organized. Simple things such as paying attention in talks and following directions become difficult. They could daydream a lot and forget important facts. This kind is more concerned with becoming lost in contemplation than with hyperactivity. 

2. Hyperactive-Impulsive Presentation

The hyperactive-impulsive Presentation of ADHD is all about restlessness and impulsiveness. It is one of 7 types of ADHD in adults who can't sit still. They're always on the go, fidgeting or tapping their feet. They act before thinking and yelling things and have trouble waiting their turn. This type can be like having an engine that's always revved up, making it difficult to slow down. They might rush into decisions without considering the consequences. 

3. Combined Presentation

Combined Presentation of ADHD with inattention and hyperactivity-impulsivity is like having two puzzle pieces in one. People with this type struggle to stay focused, get easily distracted, and can't sit still. Their minds race, and they often act impulsively, which can create a unique set of challenges to navigate in daily life.

4. Predominantly Inattentive Presentation

The predominantly inattentive manifestation of ADHD is mainly related to the urge to focus. People with this ADHD spectrum often do not pay attention to details and may forget important things. They may daydream frequently and lose track of time. Tasks that require long periods of concentration can be complicated. They may seem scattered or disorganized. It hurts their daily life, work, and relationships. It is not a matter of hyperactivity but rather of a wandering mind and scattered thoughts.

5. Predominantly Hyperactive-Impulsive Presentation

The predominantly hyperactive-impulsive type of ADHD is characterized by constant activity and impulsiveness. People with this type cannot sit still. They are constantly in motion, fidgeting or tapping. They act without thinking, often speak out of turn, and do not know how to wait. Representatives of this type live energetic, fast-paced lives. However, they have difficulty with endurance and thinking about what is going on. It is not about inattention but about the fact that a person is constantly on the move.

6. Unspecified Presentation

The indeterminate form of ADHD is like jumbled puzzle pieces. People with this one of the 7 types of ADHD in adults may not fit in from the other ones. Their symptoms don't match either inattention or hyperactivity-impulsivity. It can make it challenging to diagnose and understand their problems. These individuals may exhibit some traits from both categories. It makes them a unique combination of symptoms.

7. Late-Onset ADHD

Late-onset ADHD is when ADHD symptoms first appear in adulthood. Unlike childhood ADHD, late-onset ADHD can catch a person off guard. This condition is harder to recognize. It is because it doesn't follow a typical pattern. It can lead to difficulties with concentration, impulse control, and hyperactivity. It can affect work, relationships, and daily life. Identifying and treating late-onset ADHD can be a mystery in itself. It requires an understanding of how these symptoms suddenly appear in adulthood.

an older woman appearing overwhelmed due to ADHD

Is There a Spectrum for ADHD?

Attention Deficit Hyperactivity Disorder is not a universal disorder. Instead, it is an ADHD spectrum, a range of experiences and challenges that people face. Just as a rainbow has many colors, ADHD has different shades. Each person is somewhere on that spectrum.

Next, we'll explore the idea that ADHD is not a single condition. Instead, it is a diverse set of signs and symptoms. Some people suffer more from inattention. However, others suffer from hyperactivity and impulsivity. Some are in between, experiencing a combination of these signs.

So, let's get into the intricacies of the ADHD spectrum. You will be able to explore how it affects people and the uniqueness of each person's experience.

Mild to Severe ADHD

ADHD can range from mild to severe. In the mild form of the disorder, there may be occasional difficulties with concentration or stillness. This results in minor disruptions in performance. In more severe cases, these problems can be frequent and intense. They affect daily life, work, and relationships. The severity can vary from person to person. Understanding the extent of ADHD can help you choose appropriate treatment and support.

Coexisting Conditions

When asked if there is a spectrum for ADHD, the answer is yes. And you should realize that there are often comorbidities. These are other problems, such as anxiety or depression. It's like having several pieces of a puzzle in one picture. These comorbidities can make life difficult. They cause their own set of symptoms and difficulties. Managing both ADHD and comorbidities requires an individualized approach.

Individualized Treatment

An individualized approach to ADHD treatment is like a personalized set of tools. It takes into account the unique needs of each individual. Not all people with ADHD are the same. Some may need therapy, while others may need medication. The treatment plan may also take into account comorbidities and the severity of ADHD symptoms. It allows for an individualized approach that works for each person.

The ADHD Spectrum: An Overview

ADHD is a condition that affects many people, both young and old. And, as we said, it's a whole spectrum that involves many things. Imagine your brain is like a busy traffic intersection. For some people, the traffic flows smoothly, and for others, it's somewhat chaotic. This is precisely the case for people with ADHD.

Some have difficulty concentrating on tasks, such as homework or work. Others may be very active, constantly on the move. But it's not just about attention and energy. ADHD can also affect emotions and organization. Some people get depression; others have something else, prompting the question, "Do I have ADHD or depression?"

Understanding ADHD is very important. It helps us to support people with the condition. We're going to look at some common signs that affect these 7 types of ADHD. So, let's dive into this important topic and learn more.

Genetic and Environmental Factors

ADHD is like a puzzle that is influenced by two main factors: genetics and environment. Genetics are the pieces of the puzzle that you inherit from your family. Do close relatives suffer from ADHD? Then you have a chance of having it, too. The environment, on the other hand, adds pieces through experience. It is, for example, upbringing or stress at an early age. It is the interplay between genetic and environmental pieces of the puzzle that determines whether you will manifest ADHD.

Lifespan Considerations

The 7 types of ADHD do not stay the same throughout life; they evolve. In childhood, it may manifest as hyperactivity and learning problems. As it grows older, it may change. Managing ADHD may require different strategies at each life stage. It is essential to adapt to the changing rebus of challenges that arise along the way.

Diagnosis and Assessment

Diagnosing ADHD is like putting together a jigsaw puzzle. Medical professionals use specific criteria and assessments to determine if a person has ADHD. They consider the symptoms, the person's behaviors, and the time they have been present. They often gather information from parents or the person themselves. An accurate diagnosis helps provide a clear picture of the person's problems. It leads to more effective treatment and support.

Additionally, misdiagnosed ADHD in adults can lead to inappropriate treatment strategies and hinder individuals from receiving the appropriate support.

Conclusion

In conclusion, the ADHD spectrum is a complex puzzle. It is not only a childhood problem; it can also affect adults. There is a wide spectrum of ADHD, ranging from mild to severe, and it often coexists with other conditions, including reading difficulties.

ADHD can change throughout a person's life. Therefore, proper diagnosis and individualized treatment are key. A person can cope and lead a successful and fulfilling life with the right support and strategies.

If you're looking for specialized ADHD support in Australia, the ADHD Guide is an excellent starting point. This resource offers a comprehensive list of ADHD clinics in Canberra, Sydney, Melbourne, Gold Coast, Brisbane, and Perth.

FAQs

Can ADHD change over time, shifting from one type to another?

Yes, symptoms and types can change, especially in children and adults.

Is the ADHD spectrum the same for children and adults?

Yes, the ADHD spectrum is different for children and adults. It depends on the changing demands of life.

Can an individual have characteristics of multiple ADHD types?

Yes, an individual can have characteristics of multiple ADHD types. 

Is ADHD-NOS a less severe form of ADHD?

ADHD-NOS is not necessarily a less severe form of ADHD. But it does mean the presence of atypical or mixed symptoms of ADHD.