Bipolar disorder and ADHD can look remarkably similar, making it easy to wonder which one you or a loved one might be living with. This article breaks down the key differences, overlapping symptoms, and why the two conditions are so often confused.
Key Points
Summary:
Bipolar disorder and ADHD share several overlapping traits, including impulsivity, restlessness, and difficulty focusing, which is why bipolar disorder is sometimes misdiagnosed as ADHD. The two conditions differ in what they affect, how they are diagnosed, and the pattern and duration of mood changes involved. Sureway Health & Wellbeing offers trusted psychological assessments across Melbourne and via telehealth to help people get a clear answer to whether it's bipolar or ADHD.
Outline:
“Is it bipolar disorder, or ADHD?”
If you have ever found yourself asking this question, you’re certainly not on your own. After all, these two conditions can look remarkably similar from the outside. Both can affect a person's mood, focus, and behaviour, which is exactly why they are so often misdiagnosed as each other.
Understanding the difference between bipolar vs ADHD is an important first step towards getting the right support, whether for yourself or someone you care about.
In this article, we will explain what each condition looks like, where their symptoms overlap, and where they differ. We will also look at why bipolar disorder misdiagnosed as ADHD happens more often than you might think, and how a proper assessment can bring much-needed clarity.
At Sureway Health & Wellbeing, we understand how confusing this journey can feel, and we are here to help guide you through it.
Before we compare the two conditions, it helps to understand what each one actually is. Bipolar disorder and ADHD affect the brain in different ways, but both can shape how a person thinks, feels, and behaves day to day.
Bipolar disorder is a mental health condition that causes noticeable shifts in a person's mood, energy, and concentration. People living with bipolar disorder often move between periods of feeling extremely elated, energised, or irritable, which are known as manic episodes. At other times, they may feel very down, low, or hopeless, which are known as depressive episodes.
These shifts can have a real impact on a person's mental and physical wellbeing. Some people with bipolar disorder also experience symptoms such as hallucinations or delusions during episodes, and it is common for other mental health conditions to occur alongside it.
The condition can affect everyday life, including relationships, work, and school. Some people also face stigma around their symptoms, which can make it harder to reach out for support.
Bipolar disorder usually needs long-term management, but with the right treatment plan, people can learn to manage their symptoms and live a fulfilling life.
ADHD, or Attention-Deficit Hyperactivity Disorder, is a neurodevelopmental condition. It’s generally recognised through three main patterns:
Some people mostly experience inattention, others find hyperactivity and impulsivity more prominent, and some experience a mix of all three.
Everyone shows these behaviours from time to time. For people with ADHD, though, these patterns show up often and across different areas of life, such as at school, home, work, or with family and friends, and they get in the way of daily functioning.
ADHD is one of the most commonly diagnosed conditions in children, and symptoms usually begin early and continue into the teenage years and adulthood. It often occurs alongside other conditions, such as anxiety, depression, sleep difficulties, or learning differences, which can make diagnosis more complex.
Because bipolar disorder and ADHD share a number of similar traits, it's easy to see why they can be hard to tell apart. Below are some of the most common areas where their symptoms overlap.
Hyperactivity and Restlessness
Both conditions can leave a person feeling restless or unable to settle. The main difference lies in consistency. Hyperactivity linked to ADHD tends to stay fairly steady over time, while hyperactivity related to bipolar disorder tends to come and go alongside mood episodes.
Difficulty Focusing
Trouble focusing is one of the clearest signs of ADHD, often leading a person to jump between tasks without finishing them. Bipolar disorder can also affect concentration, particularly during manic episodes, when racing thoughts make it difficult to settle on one thing at a time.
Impulsivity
Acting quickly without thinking through the consequences can show up in both conditions. For people with ADHD, this is generally linked to how the brain regulates impulse control. In bipolar disorder, impulsivity tends to increase during manic phases, when judgement can become impaired.
Sleep Problems
ADHD can disrupt the way the brain regulates sleep, leading to ongoing difficulties settling or staying asleep. In bipolar disorder, reduced sleep often appears just before a manic episode and can even help trigger further mood changes.
Mood Changes
Bipolar disorder is defined by significant mood swings that tend to occur a few times a year. ADHD can also bring emotional ups and downs, though these usually happen several times within a single day rather than as distinct, longer episodes.
While bipolar disorder and ADHD share some common ground, they differ in important ways when it comes to their nature, how they are diagnosed, and how they affect development.
Bipolar disorder mainly affects mood, causing a person to shift between manic and depressive episodes. These shifts can significantly affect social life, school or work performance, and overall mental health. Depressive episodes may bring deep sadness, low energy, and a loss of interest in things once enjoyed, while manic or hypomanic episodes can bring irritability, a reduced need for sleep, and an inflated sense of self-confidence.
People with ADHD face a different set of challenges, mainly ongoing difficulties with attention, focus, and impulse control. People with ADHD may find it hard to organise tasks, follow instructions, or sit still for long stretches. While ADHD can create real challenges at school, work, and in relationships, it does not cause the dramatic mood swings seen in bipolar disorder.
Bipolar disorder often emerges later, during the teenage years or early adulthood, although it can appear earlier in some cases. ADHD is typically identified much earlier, often before the age of twelve, as symptoms tend to appear in early childhood.
Diagnosing bipolar disorder can be particularly tricky in younger people, since mood swings and irritability are also a normal part of growing up. It is when these symptoms present as manic episodes that bipolar disorder becomes a more likely explanation. ADHD, in comparison, is identified through ongoing patterns of inattention, hyperactivity, and impulsivity that consistently interfere with daily life.
Given how much these two conditions overlap, it’s easy to understand why bipolar disorder is sometimes misdiagnosed as ADHD, and why some people are told they may have ADHD or bipolar disorder before receiving a fuller picture.
A few key factors contribute to this diagnostic confusion:
As mentioned earlier, ADHD involves ongoing inattention, hyperactivity, and impulsivity that begin in childhood and continue throughout life. However, the emotional ups and downs that often come with ADHD can resemble the mood episodes seen in bipolar disorder, especially if an assessment focuses mainly on mood without looking at the wider picture.
Young adults with ADHD may go through quick mood changes triggered by things like rejection, frustration, or their environment. These shifts can be mistaken for the hypomanic or manic episodes associated with bipolar disorder, particularly when the person assessing them has limited experience with both conditions.
Mood changes are one of the biggest reasons ADHD and bipolar disorder are mixed up. With ADHD, mood shifts usually happen in response to a specific trigger and tend to last minutes to hours, rather than days or weeks. These reactions are generally tied to something in the moment, such as an interaction, a frustration, or a change in environment.
Bipolar disorder, by comparison, involves distinct mood episodes that last for a set period of time, at least four days for hypomania and at least a week for mania. These episodes reflect a clear shift away from a person's usual mood and functioning, and can occur with or without an obvious trigger.
The emotional ups and downs seen in ADHD tend to come from difficulties with emotional regulation and impulse control, rather than the cyclical mood episodes that define bipolar disorder. This is an important distinction that should guide diagnosis, but it can be missed when an assessment leans too heavily on the presence of mood changes alone, without exploring their pattern and duration in detail.
Understanding yourself or your loved one can make a world of difference, and that is exactly where our team can help. At Sureway Health & Wellbeing, we offer therapeutic support and trusted psychological assessments from our Melbourne locations in Bundoora and Eltham, or via telehealth across Australia for adults.
Our services cover a wide range of needs, including ADHD, bipolar disorder, autism, cognitive concerns, and more. If you’re an adult exploring an ADHD or a bipolar diagnosis for yourself, or supporting someone else through the process, either in person or via telehealth, our team is here to support you every step of the way.
Our goal is to bring clarity, guide your next steps, and connect you with the right supports for your situation.
Ready to take that first step towards personalised care? Get in touch with our friendly team today to book an appointment or refer someone you care about.
Sureway Health and Wellbeing psychology team provide services across the following locations: Bundoora, Mill Park, Thomastown, Reservoir, Greensborough, Watsonia, Eltham, Diamond Valley, North Eastern Melbourne and via telehealth Australia wide.
