Understanding the Three Subtypes of ADHD

Attention Deficit Hyperactivity Disorder (ADHD) is often associated with childhood, but it can persist into adulthood, affecting various aspects of daily life. While many people are familiar with ADHD in children, its manifestation in adults is less understood but equally impactful. One way to understand adult ADHD is through its three subtypes, each presenting unique challenges and opportunities for management.

1. Predominantly Inattentive Presentation:

This subtype of ADHD is characterized primarily by difficulties with attention and focus. Individuals with predominantly inattentive presentation often struggle with:

- Easily Distracted: They find it hard to concentrate on tasks, often getting sidetracked by irrelevant stimuli.

- Disorganization: Keeping track of appointments, deadlines, and personal belongings may be challenging.

- Forgetfulness: They might frequently forget important details or lose items necessary for daily activities.

- Difficulty Following Instructions: Processing verbal or written instructions can be a struggle, leading to misunderstandings or incomplete tasks.

Living with predominantly inattentive presentation can be frustrating, as it often leads to underachievement in academic or professional settings despite having the potential to excel.

2. Predominantly Hyperactive-Impulsive Presentation:

Unlike the inattentive subtype, individuals with predominantly hyperactive-impulsive presentation exhibit more physical restlessness and impulsive behaviours. Common characteristics include:

- Excessive Fidgeting: They may have difficulty sitting still for extended periods and often feel the need to move or engage in physical activity.

- Impulsivity: Acting on impulses without considering consequences is common, leading to risky behaviors or interrupting others in conversations.

- Restlessness: Even in quiet settings, they may feel a constant urge to be on the move or engage in activities.

- Difficulty Waiting: Waiting for their turn in lines or during conversations can be challenging, leading to impatience or frustration.

This subtype of ADHD can impact interpersonal relationships and self-regulation, making it challenging to maintain focus and control in various situations.


3. Combined Presentation:

As the name suggests, the combined presentation of ADHD encompasses symptoms from both the inattentive and hyperactive-impulsive subtypes. Individuals with this subtype experience a wide range of challenges, including:

- Struggles with Attention and Impulsivity: They may find it difficult to concentrate on tasks while also experiencing impulsive urges.

- Restlessness and Distractibility: Balancing the need for movement with the necessity of focused attention can be particularly challenging.

- Difficulty in Multiple Settings: Symptoms of both inattention and hyperactivity-impulsivity often manifest across various areas of life, including work, home, and social environments.


Living with combined presentation ADHD requires a multifaceted approach to management, often involving a combination of medication, therapy, and lifestyle adjustments.

Understanding and Managing Adult ADHD:

While these subtypes provide a framework for understanding adult ADHD, it's essential to recognize that each individual's experience is unique. Diagnosis and treatment should be tailored to address specific symptoms and challenges. Additionally, many adults with ADHD find that strategies such as mindfulness, organization techniques, and support groups can significantly improve their quality of life.


If you suspect you or someone you know may have adult ADHD, seek a professional evaluation and book a consultation today. With understanding, proper management, and support, individuals with ADHD can lead fulfilling and productive lives, leveraging their unique strengths and overcoming challenges along the way.

In conclusion, adult ADHD is a complex condition with diverse manifestations. By recognizing the three subtypes and their respective challenges, we can better support individuals with ADHD in navigating daily life and achieving their full potential.

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Emotional Dysregulation in Adult ADHD: Understanding and Coping

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The Signs and Symptoms of ADHD You Shouldn’t Ignore