Untreated ADHD in Adults. Symptoms & Risks of Untreated ADHD.

Untreated ADHD in adults can manifest as difficulty concentrating, impulsivity, disorganization, forgetfulness, and challenges with time management and completing tasks.


By Editorial Team and supported by We Level Up FL, referred to as We Level Up Tamarac FL
Editor Yamilla Francese
Clinically Reviewed by Lauren Barry, LMFT, MCAP, QS
Medically Reviewed by Ali Nikbakht, PsyD
Updated on April 9, 2024 — Editorial Policy | Research Policy

Untreated ADHD in Adults

Attention Deficit Hyperactivity Disorder (ADHD) is a condition often associated with the bustling energy of childhood, yet its impact doesn’t fade as one grows older. Adults with untreated ADHD often grapple with unique challenges that significantly influence their daily lives and long-term well-being. As we explore untreated ADHD in adults, we dive into the intricate world of symptoms that persist beyond youth and the consequential risks of leaving this condition unattended.

From the subtle signs that are easily overlooked to the potential ramifications that can extend into various spheres of life, this article aims to illuminate the often-unseen struggles of those affected by untreated ADHD. By understanding the symptoms and risks inherent to this condition, we uncover the urgency of recognizing and addressing ADHD in adults to promote healthier, more fulfilling lives.

Symptoms of Untreated ADHD in Adults

Untreated ADHD can manifest through diverse symptoms extending beyond childhood and significantly impacting daily life. These symptoms may vary in intensity and presentation, but they collectively contribute to the challenges faced by individuals with untreated ADHD. Here are some common symptoms:

  1. Inattention: Adults with untreated ADHD might struggle to focus on tasks, frequently becoming easily distracted or sidetracked. They might find organizing activities, following instructions, or completing tasks requiring sustained attention challenging.
  2. Impulsivity: Impulsiveness remains a hallmark of untreated ADHD. This can manifest as acting without thinking, interrupting conversations, making hasty decisions, or engaging in risky behaviors without considering potential consequences.
  3. Hyperactivity: While hyperactivity often appears more subdued in adults than children, it can still be present. Restlessness, fidgeting, and difficulty staying still can characterize this symptom.
  4. Time Management and Organization Difficulties: Individuals with untreated ADHD may struggle to manage their time effectively, leading to difficulty meeting deadlines, punctuality, and planning activities. Organizing tasks and maintaining order can be particularly challenging.
  5. Forgetfulness: Adults with untreated ADHD often experience forgetfulness, such as misplacing items, missing appointments, or struggling to remember important dates and events.
  6. Poor Impulse Control: Difficulty controlling impulses can lead to impulsive spending, overeating, substance abuse, or risky behaviors without weighing the potential consequences.
  7. Procrastination: Adults with untreated ADHD might find it challenging to initiate tasks, often putting things off until the last minute due to struggles with prioritization and organization.
  8. Relationship Challenges: Untreated ADHD can strain relationships due to communication difficulties, forgetfulness, impulsivity, and difficulty focusing during conversations.
  9. Work and Academic Challenges: Professionals and students might experience underachievement, inconsistent performance, missed deadlines, and difficulty focusing on tasks required for success.
  10. Emotional Dysregulation: Adults with untreated ADHD might have difficulty managing their emotions, experiencing mood swings, frustration, irritability, and impatience more intensely than others.
  11. Low Self-Esteem: Repeated challenges and negative feedback resulting from untreated ADHD can contribute to low self-esteem and feelings of inadequacy.
  12. Driving and Safety Concerns: Impulsivity and inattention can make tasks such as driving more dangerous for individuals with untreated ADHD, potentially leading to accidents or traffic violations.

Understanding these symptoms is crucial in recognizing the potential presence of untreated ADHD. Addressing these symptoms through appropriate interventions, therapies, and management strategies can improve quality of life and overall well-being.

Untreated ADHD in adults can manifest as difficulty concentrating, impulsivity, disorganization, forgetfulness, and challenges with time management and completing tasks.
Untreated ADHD in adults can manifest as difficulty concentrating, impulsivity, disorganization, forgetfulness, and challenges with time management and completing tasks.

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ADHD Fact Sheet

Prevalence: ADHD is one of the most common neurodevelopmental disorders, affecting approximately 5-10% of children and 2-5% of adults worldwide. It is more commonly diagnosed in males than females.

Core Symptoms: The core symptoms of ADHD include inattention, hyperactivity, and impulsivity. Individuals with ADHD may have difficulty sustaining attention, organizing tasks, following instructions, sitting still, and controlling impulses.

ADHD is categorized into three subtypes:

a. Predominantly Inattentive Presentation: Primarily characterized by difficulties with attention and organization.

b. Predominantly Hyperactive-Impulsive Presentation: Primarily characterized by hyperactivity and impulsivity.

c. Combined Presentation: Displays symptoms of both inattention and hyperactivity-impulsivity.

Diagnosis of ADHD: This involves a comprehensive evaluation, including interviews with the individual, parents (for children), and teachers or other relevant observers. The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) criteria are commonly used for diagnosis.

Long-Term Outlook: With appropriate diagnosis, treatment, and support, individuals with ADHD can lead fulfilling lives. Early intervention and ongoing management can significantly reduce the impact of symptoms and improve overall functioning.

Co-occurring Conditions: ADHD often coexists with other conditions such as learning disabilities, anxiety disorders, depression, oppositional defiant disorder (ODD), and conduct disorder (CD). These comorbidities can further complicate diagnosis and treatment.

Untreated ADHD in Adults Statistics

Understanding the impact of untreated ADHD is crucial for recognizing the scope of this condition and its implications. Statistics provide valuable insights into the prevalence, challenges, and consequences of individuals who do not receive adequate treatment for their ADHD.

  1. Prevalence: It’s estimated that around 4% to 5% of adults worldwide have ADHD. However, many cases go undiagnosed or untreated.
  2. Gender Distribution: ADHD is often diagnosed more frequently in males, but studies suggest that it’s likely underdiagnosed in females due to differences in symptom presentation.
  3. Comorbidity: Adults with untreated ADHD are likelier to have coexisting mental health conditions such as anxiety, depression, and substance use disorders.
  4. Educational and Occupational Impact: Research indicates that untreated ADHD can lead to educational attainment, career advancement, and job stability difficulties.
  5. Risk of Substance Abuse: Individuals with untreated ADHD are more likely to engage in substance abuse to self-medicate their symptoms.

8.7 Million

In 2019, the number of visits to physician offices with attention deficit disorder as the primary diagnosis was 8.7 million.

Source: NIMH

9.5%

Approximately 9.5% of American adults, ages 18 and over, will suffer from a depressive illness (major depression, bipolar disorder, or dysthymia) each year.

Source: NIMH

70-80%

The heritability of ADHD, estimated to be around 70-80%, further supports the notion that genetic factors play a substantial role in its development.

Source: NIMH

Untreated ADHD Life Expectancy

While Attention Deficit Hyperactivity Disorder (ADHD) itself does not directly impact life expectancy, the challenges and risks associated with untreated ADHD can indirectly influence various aspects of health and well-being, which in turn may affect overall life expectancy.

Here are the potential ways in which untreated ADHD might impact life expectancy:

Stressful life events, such as relationship problems, work-related issues, financial difficulties, or major life changes, can trigger mood swings in individuals with Rapid Cycling Bipolar Disorder.
Untreated ADHD’s impulsivity might lead to risky behaviors, such as impulsive spending, reckless driving, or making hasty decisions.
  1. Risky Behaviors: Untreated ADHD can lead to impulsive actions, increasing the risk of accidents and injuries.
  2. Health Neglect: Difficulty with organizing may result in neglecting health-related tasks and treatments.
  3. Coexisting Conditions: Untreated ADHD often accompanies other mental health issues, compounding health challenges.
  4. Stress and Cardiovascular Health: Chronic stress due to untreated ADHD can potentially affect heart health.
  5. Work and Social Impacts: Challenges in education and relationships might impact overall well-being.
  6. Emotional Dysregulation: Untreated ADHD can lead to emotional stress, potentially affecting mental health.
  7. Health Disparities: Lack of proper healthcare access can delay treatment and impact overall health outcomes.

While untreated ADHD is not a direct cause of decreased life expectancy, its associated challenges and potential health risks can influence health outcomes over time. Early diagnosis, appropriate treatment, and effective coping strategies can mitigate these risks and promote a healthier and more fulfilling life for individuals with ADHD.

Signs of Untreated ADHD

It can exhibit various signs and symptoms that impact various aspects of their daily lives. Here are some common signs to watch for:

  1. Inattention: Difficulty sustaining focus on tasks, becoming easily distracted, and making careless mistakes.
  2. Impulsivity: Acting without thinking, interrupting others, making impulsive decisions, and struggling with self-control.
  3. Hyperactivity: Restlessness, fidgeting, and a constant need for movement, even in situations where it’s not appropriate.
  4. Procrastination: Putting off tasks and responsibilities, often due to difficulties initiating and organizing activities.
  5. Poor Time Management: Struggling to manage time effectively, leading to missed deadlines and challenges with planning.
  6. Forgetfulness: Frequently forgetting appointments, tasks, and essential details.
  7. Difficulty Prioritizing: Trouble organizing tasks and activities in order of importance.
  8. Impaired Working Memory: Struggling to hold information temporarily in mind, affecting problem-solving and following instructions.
  9. Communication Challenges: Difficulty listening attentively, maintaining conversations, and following discussions.
  10. Relationship Struggles: Impulsivity and inattention can strain relationships, causing misunderstandings and frustration.

Can Untreated ADHD Cause Psychosis?

No, untreated ADHD itself does not cause psychosis. However, individuals with untreated ADHD might have an increased risk of developing comorbid conditions, like anxiety or depression, which could share some symptoms with psychosis. It’s important to differentiate between these conditions and consult a mental health professional for accurate diagnosis and guidance.

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Risks of Untreated ADHD

It can lead to various risks and challenges that affect various aspects of their lives. Here are some notable risks:

RiskDescription
Impaired FunctioningHinders work performance, academics, and relationships.
Strained RelationshipsCommunication difficulties and impulsivity strain personal relationships.
Low Self-EsteemRepeated struggles erode self-esteem and self-worth.
Mental Health IssuesHigher risk of developing anxiety, depression, and other disorders.
Substance AbuseCoping with symptoms through substance use increases addiction risk.
Accidents and InjuriesImpulsivity and inattention increase the risk of accidents and injuries.
Unemployment or UnderemploymentChallenges in organization and performance lead to employment issues.
Financial DifficultiesImpulsive spending and poor financial planning cause instability.
Legal IssuesImpulsive behavior can result in legal troubles.
Health NeglectDifficulty managing health-related tasks leads to neglect of health.
Long-Term Well-beingContributes to emotional and physical health issues over time.
Reduced Life SatisfactionCumulative challenges can result in reduced overall life satisfaction.
Risks of Untreated ADHD

Does Untreated ADHD Get Worse with Age?


Untreated ADHD symptoms can evolve and present differently as individuals with ADHD age. While ADHD does not necessarily get worse with age, its challenges can manifest in new ways due to changing responsibilities and life circumstances. Here’s a breakdown of how untreated ADHD might change as individuals grow older:

  1. Shifting Symptoms: Hyperactivity decreases, while inattention and impulsivity might persist.
  2. Increased Responsibilities: More demands on organization and focus can highlight untreated ADHD symptoms.
  3. Workplace Challenges: Job performance can be impacted by inattentiveness and focus difficulties.
  4. Relationship Struggles: Communication issues and impulsivity can strain relationships.
  5. Emotional Impact: Untreated ADHD challenges can lead to emotional distress.
  6. Risk Behaviors: Untreated impulsivity might lead to risky actions with more significant consequences.
  7. Mental Health Risks: The impact on self-esteem increases the risk of mental health issues.
While ADHD doesn't necessarily worsen with age, untreated symptoms might lead to increased difficulties in managing responsibilities and daily tasks as life becomes more complex.
While ADHD doesn’t necessarily worsen with age, untreated symptoms might lead to increased difficulties in managing responsibilities and daily tasks as life becomes more complex.

Can Untreated ADHD Cause Depression?

Yes, untreated ADHD can contribute to the development of depression. While ADHD itself doesn’t directly cause depression, the chronic stress stemming from the challenges of untreated ADHD, along with emotional dysregulation, low self-esteem, social difficulties, and the potential for coexisting conditions, can increase the risk of depressive symptoms.

The negative impact on self-esteem and struggles in managing emotions and relationships can create a fertile ground for the onset of depression. Therefore, addressing untreated ADHD through appropriate interventions and support mitigates its immediate effects and helps reduce the risk of depression in the long run. If someone with untreated ADHD is experiencing signs of depression, seeking professional help is crucial for accurate diagnosis and effective treatment.

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Long-Term Effects of Untreated ADHD in Adults

This can have a range of long-term effects impacting various life aspects. While each individual’s experience may differ, here are some common long-term effects to consider:

  1. Educational and Career Challenges: Untreated ADHD can lead to underachievement in education and difficulty maintaining stable careers due to organizational struggles, distractibility, and poor time management.
  2. Relationship Strain: Impulsivity, inattention, and communication difficulties can strain personal and professional relationships, potentially leading to isolation and loneliness.
  3. Low Self-Esteem: Chronic struggles and societal misunderstandings can erode self-esteem, impacting overall self-worth and confidence.
  4. Mental Health Concerns: Untreated ADHD increases the risk of developing anxiety, depression, and other mood disorders due to chronic stress and emotional dysregulation.
  5. Substance Abuse: Individuals with untreated ADHD might use substances to cope with symptoms, leading to a higher risk of addiction.
  6. Financial Instability: Impulsive spending and poor financial management can result in long-term financial challenges.
  7. Health Neglect: Difficulty managing health-related tasks, such as regular medical check-ups and chronic condition management, can impact overall health and well-being.
  8. Reduced Quality of Life: Cumulative challenges across various domains can reduce overall quality of life and life satisfaction.
  9. Emotional Dysregulation: Untreated ADHD can contribute to mood swings, irritability, and difficulty managing emotions effectively.
  10. Legal and Safety Concerns: Impulsivity might lead to risky behaviors and legal issues, impacting personal safety and well-being.
  11. Workplace Struggles: Inconsistent performance and difficulties with focus can lead to employment challenges and missed career opportunities.

It’s important to note that not everyone with untreated ADHD will experience all of these effects, and the severity can vary. Addressing ADHD through appropriate interventions, such as therapy, medication, and lifestyle adjustments, can help mitigate these long-term effects and promote a healthier and more fulfilling life.

Can Untreated ADHD Cause High Blood Pressure?

Untreated ADHD is not directly known to cause high blood pressure (hypertension). However, there are factors related to untreated ADHD that could potentially contribute to an increased risk of hypertension:

Untreated ADHD itself doesn't directly cause high blood pressure, but factors like chronic stress and unhealthy lifestyle choices associated with untreated ADHD might contribute to an increased risk of hypertension.
Untreated ADHD doesn’t directly cause high blood pressure, but factors like chronic stress and unhealthy lifestyle choices associated with untreated ADHD might contribute to an increased risk of hypertension.
  1. Stress: Individuals with untreated ADHD often experience chronic stress due to their challenges in managing their symptoms and daily life. Chronic stress can contribute to the development of high blood pressure.
  2. Lifestyle Factors: Some adults with untreated ADHD might engage in unhealthy lifestyle behaviors, such as poor diet, lack of exercise, and inadequate sleep, which are risk factors for hypertension.
  3. Medication Considerations: Certain stimulant medications used to treat ADHD might impact blood pressure. However, it’s important to note that these medications are different from untreated ADHD itself.
  4. Impulsivity and Risky Behaviors: Impulsivity, a common symptom of untreated ADHD, might lead to behaviors that contribute to high blood pressure, such as excessive caffeine consumption, smoking, or poor stress management.

While untreated ADHD doesn’t directly cause high blood pressure, the lifestyle factors, stress, and potential medication considerations associated with untreated ADHD could contribute to an increased risk. Individuals with untreated ADHD should manage stress, adopt a healthy lifestyle, and consult healthcare professionals to monitor and manage blood pressure levels effectively. If you’re concerned about the impact of untreated ADHD on your health, it’s essential to consult a medical professional for personalized guidance.

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Untreated ADHD During Pregnancy

Untreated ADHD during pregnancy introduces several considerations for expectant mothers. While the direct effects of untreated ADHD on pregnancy are not fully established, managing the symptoms becomes vital due to potential challenges. The hormonal changes and stress associated with pregnancy might exacerbate emotional difficulties and stress management issues linked to ADHD. The dilemma arises with ADHD medications, as some aren’t recommended during pregnancy due to potential risks.

This leaves individuals with the decision to manage symptoms without medication. While research doesn’t definitively link untreated ADHD to specific birth complications, consulting healthcare professionals to evaluate personalized risks and benefits is prudent. Exploring non-medication strategies, adopting a healthy lifestyle, and planning for postpartum challenges can help ensure a smoother journey for the mother and the developing baby.

Untreated ADHD can make parenting challenging due to difficulties in organization, impulse control, and maintaining routines.
Untreated ADHD can make parenting challenging due to difficulties in organization, impulse control, and maintaining routines.

Untreated ADHD in Female Adults

Untreated ADHD in adult females presents with distinct characteristics and challenges. Often manifesting with inattentiveness rather than hyperactivity, females might develop coping mechanisms that mask their symptoms, leading to underdiagnosis or misdiagnosis. Untreated ADHD can impact academic and work struggles, emotional dysregulation, and relationship dynamics. Additionally, gender biases and hormonal influences contribute to healthcare disparities. Recognizing these nuances is vital to providing accurate diagnosis and tailored support. Raising awareness, educating healthcare professionals about gender-specific symptomatology, and implementing personalized interventions can help address the untreated ADHD challenges faced by adult females, promoting improved well-being and life quality.

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  1. What happens if ADHD goes untreated?

    If ADHD goes untreated, it can lead to challenges in various aspects of life, including education, work, relationships, self-esteem, and overall well-being.

  2. Can Untreated Adult ADHD Affect Relationships?

    Yes, Untreated ADHD can contribute to communication issues, impulsivity, and forgetfulness, which might strain personal and professional relationships.

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