Think You Have Adult ADHD? Here’s Why Getting the Diagnosis Right Matters

In a world of constant notifications and endless scrolling, it’s no surprise many of us struggle to focus. But feeling distracted doesn’t automatically mean you have ADHD.

Nevada Mental Health co-founder and medical director Dr. Sid Khurana, M.D. explains why adult ADHD is often misunderstood, misdiagnosed, and why an accurate evaluation matters.

What Adult ADHD Really Is

ADHD, which stands for attention-deficit/hyperactivity disorder, is a neurodevelopmental disorder that begins in childhood. While many people see symptoms lessen as the brain matures, ADHD does not automatically disappear with age.

Simply put, adult ADHD is “nothing but ADHD in adults,” Dr. Khurana said.

As the brain develops, some people outgrow symptoms, but for others, ADHD continues into adulthood as a lifelong condition.

Clinically, the numbers reflect this pattern: About 9% of children and 3% of adults have ADHD.

Why ADHD Is Often Misunderstood Today

Today, what has changed is awareness, especially online, where ADHD content is often overly broad.

Posts that list general difficulties like trouble focusing, procrastinating, or feeling overwhelmed can check off boxes for many of us, but these challenges are not unique to the condition.

Anxiety, depression, bipolar disorder, chronic stress, substance use, and sleep or medical issues, for example, can cause similar experiences.

What Adult ADHD Actually Looks Like

Adult ADHD looks very different from your typical child who is in the classroom “making a lot of noise, not sitting still, climbing on the walls,” Dr. Khurana said.

Instead, it may show up as constant tardiness, starting tasks that remain unfinished, or losing track of time. Adults with ADHD may make impulsive decisions, struggle to wait in lines or traffic, and interrupt others because their thoughts move faster than the conversation.

“Those are the adults who are gonna sit with their partner to watch TV but they cannot just watch a show. They have to be on their phone and do something else, or interrupt, or get up, go get a drink,” Dr. Khurana explained.

What was once dismissed as a personality quirk, irritability, or a mood problem may actually be a sign of underlying ADHD.

Why Misdiagnosis Happens

Part of what makes adult ADHD difficult to identify is that many of its symptoms overlap with other mental health conditions. Anxiety, depression, and bipolar disorder can all look similar in some ways. To differentiate, clinicians look at patterns over time.

One key difference with ADHD is that it’s a lifelong disorder.

“Every day, you have ADHD,” Dr. Khurana explained. “Whereas bipolar disorder or mood disorders are episodic disorders. Not every single day of their life, people are depressed or are manic.”

Making this distinction is crucial, because the treatment approaches differ significantly. Some people may benefit from medication, others from therapy or lifestyle changes, and many require a combination of strategies.

Why Professional Evaluation Matters

You cannot accurately diagnose ADHD through an online checklist or at home. A thorough evaluation involves reviewing personal and developmental history, mental status, medical and psychiatric records, and sometimes input from family or partners. Seeing an adult psychiatry care team over multiple visits increases the likelihood of reaching the right conclusion.

“Once you know the diagnosis, then you can explain to the patient what is the prognosis, what is the course of treatment, and most importantly, what is the treatment plan,” Dr. Khurana said.

As Dr. Khurana emphasizes, misdiagnosis can cut both ways. Someone with bipolar disorder might be labeled as having ADHD and treated incorrectly, or someone with ADHD could be diagnosed with a mood disorder. Because the treatments for these conditions are very different, an accurate diagnosis is essential.

A Quick Summary

Adult ADHD is something you live with every day, not something that comes and goes. Because the symptoms can overlap with anxiety, depression, bipolar disorder, sleep issues, and more, getting a real, professional evaluation matters.

The right diagnosis leads to the right ADHD treatment and a lot less frustration.

“Accurate diagnosis is really important because the treatment is vastly different,” Dr. Khurana said.