Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder that affects people of all ages. It is characterized by inattention, hyperactivity, and impulsivity, which can interfere with daily life. Diagnosing ADHD early is important because it allows for appropriate treatment that can improve symptoms and quality of life. In this article, we will explore the symptoms of ADHD, the diagnostic criteria used to diagnose the disorder, the tests and assessments used during diagnosis, comorbidities associated with ADHD, and the importance of seeing a qualified professional.

Symptoms of ADHD

ADHD symptoms can vary from person to person, but common symptoms include hyperactivity, impulsivity, and inattention. People with hyperactivity may feel restless, fidgety, and have a hard time sitting still. They may interrupt others and talk excessively. People with impulsivity may act before they think, have difficulty waiting for their turn, and engage in risk-taking behavior. People with inattention may struggle to focus, get easily distracted, and have difficulty organizing tasks.

These symptoms can impact daily life in a variety of ways. Children with ADHD may have trouble with schoolwork, following directions, and making friends. Adults with ADHD may face challenges at work, in relationships, and with completing daily tasks.

It’s important to note that ADHD symptoms may present differently in children and adults. While children may display more hyperactivity and impulsivity, adults may struggle more with inattention and organization.

Diagnostic Criteria

The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) is a commonly used tool for diagnosing ADHD. In order to be diagnosed with ADHD, a person must display symptoms of hyperactivity, impulsivity, and/or inattention that are consistent and long-lasting. These symptoms must also interfere with daily life.

There are three types of ADHD – predominantly inattentive, predominantly hyperactive-impulsive, and combined. Predominantly inattentive ADHD involves symptoms of inattention without hyperactivity or impulsivity. Predominantly hyperactive-impulsive ADHD involves symptoms of hyperactivity and impulsivity without inattention. Combined ADHD involves symptoms of all three categories.

The diagnostic criteria for these types of ADHD differ slightly. For example, in order to be diagnosed with predominantly inattentive ADHD, a person needs to display at least six symptoms of inattention and fewer than six symptoms of hyperactivity-impulsivity.

Diagnostic Tests

A clinician might use a variety of tests and assessments to diagnose ADHD. These tests can rule out other conditions, such as anxiety or depression, and provide a more accurate diagnosis.

The most common type of assessment used to diagnose ADHD is a behavioral assessment. During this assessment, a clinician may ask questions about symptoms, family history, and other medical conditions. They may also observe the patient’s behavior in different settings, such as at home and school.

Other types of tests that may be used during diagnosis include psychological tests, intelligence tests, and academic tests. These tests can help the clinician understand if a learning difference or other condition may be contributing to symptoms.


ADHD is often comorbid with other conditions, such as anxiety, depression, and learning differences. Comorbidities can make it more difficult to diagnose and treat ADHD, as symptoms can overlap.

Diagnosing and treating comorbidities is important in improving symptoms of ADHD. For example, treating anxiety may reduce overall stress levels and improve focus.

The Importance of Seeing a Qualified Professional

It’s important to seek a diagnosis from a qualified professional, such as a psychiatrist or clinical psychologist. These professionals have specialized training and expertise in diagnosing and treating ADHD.

A misdiagnosis can have a significant impact on treatment. For example, a person who is misdiagnosed with depression instead of ADHD may not receive the appropriate treatment, which can worsen symptoms.

What to Expect During a Diagnosis

If you’re heading into a diagnostic assessment for ADHD, there are a few things to keep in mind. The assessment may take several hours or even multiple appointments. During this time, the clinician will ask a variety of questions and may ask you to complete different tests.

It’s important to be honest and open during the assessment. Remember that the clinician is there to help you, not judge you. If you’re unsure of an answer, it’s okay to say so.

After the assessment, the clinician will communicate the results with you and discuss treatment options. Treatment may include medication, therapy, or a combination of both.


ADHD is a common neurodevelopmental disorder that impacts daily life. Diagnosing ADHD early is important in order to improve symptoms and quality of life. By understanding the symptoms, diagnostic criteria, and tests used during diagnosis, you can be better equipped to seek a diagnosis from a qualified professional. Remember that there are treatment options available and seeking help is a sign of strength.

By Riddle Reviewer

Hi, I'm Riddle Reviewer. I curate fascinating insights across fields in this blog, hoping to illuminate and inspire. Join me on this journey of discovery as we explore the wonders of the world together.

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