Behavioral Disorders: Definition, Types, Symptoms, Causes, Treatments

Behavioral disorders are characterized by disruptive behaviors that impact daily life, causing problems in school, home, and social situations. These disorders are common among both children and adults and have long-term effects if left untreated.

At least one in five (20%) children and adolescents experience a mental health disorder at some point from childhood to adolescence, according to Brauner, C. B. et al. 2006 study titled, “Estimating the Prevalence of Early Childhood Serious Emotional/Behavioral Disorders” published in the Public Health Reports.

The types of behavioral disorders include anxiety disorders, disruptive behavioral disorders (such as ADHD, Oppositional Defiant Disorder (ODD), and Conduct Disorder), dissociative disorders, emotional disorders, and pervasive developmental disorders.

Symptoms involve inappropriate actions or emotions under normal circumstances. 

Common symptoms include hyperactivity, impulsivity, defiance towards authority figures, difficulty with interpersonal relationships, feelings of unhappiness or depression, and fear related to personal or school matters.

The causes of behavioral disorders are genetic factors and environmental influences such as family dynamics or social pressures. Approximately 50% of the variance in antisocial behavior is attributed to genetic influences, according to Tuvblad, C.  et al. 2013 study titled, “Genetic and Environmental Influences on Antisocial Behavior.” published in the Journal of Criminal Justice.

For treatment, interventions focus on addressing the specific disorder through a combination of therapy (e.g., cognitive-behavioral therapy), medication when necessary (e.g., for ADHD), and educational support to manage learning difficulties associated with these conditions. Early diagnosis is crucial for effective management.

What are Behavioral Disorders?

Behavioral disorders in children are persistent patterns of behavior that are disruptive, inappropriate for their age, and cause significant problems at home, school, or in social situations. These behaviors must persist for at least six months to be considered a disorder. 

In 2012, nearly 500,000 pediatric admissions included behavioral disorders. The admission rate was about 5.5 per 1,000 children in the U.S., with variations by race/ethnicity and insurance type, according to Egorova NN et al. 2018 study titled “Behavioral Health Diagnoses Among Children and Adolescents Hospitalized in the United States,” published in the Psychiatric Services Journal. 

Behavioral disorders include a range of conditions, such as Attention Deficit Hyperactivity Disorder (ADHD), Oppositional Defiant Disorder (ODD), and Conduct Disorder (CD). ADHD is characterized by excessive hyperactivity, impulsivity, and inattention. ODD involves angry/irritable mood and argumentative/defiant behavior lasting at least six months. Severe aggressive or non-aggressive behaviors against people or property mark Conduct Disorder.

These disorders disrupt interpersonal relationships and learning environments. For instance, children with ADHD struggle with sustained attention and organization skills, while those with ODD frequently defy authority figures and exhibit vindictive behavior toward others. Conduct Disorder lead to more serious issues like bullying or theft due to a lack of empathy for others’ rights or societal norms.

How Common are Behavioral Disorders?

Behavioral disorders are a significant concern across various age groups, including adults. Up to one-third of adults in the U.S. suffer from a behavioral health disorder, according to Behavioral Health, United States, 2012 study titled “Substance Abuse and Mental Health Services Administration,” published in the Journal of Behavioral Health Disorders Across The Life Span. 

Approximately 6.0% of U.S. adults (about 15.5 million) had a current ADHD diagnosis as of 2023, according to Jenkins, R. et al. 2015 study titled, “Attention Deficit Hyperactivity Disorder Symptom Self-report in Adults in Kenya and its Associated Risk Factors” published in the Journal of Global Mental Health. This shows that behavioral disorders are a common concern and affect individuals of all ages.

At least 20% of Los Angeles County’s adult population will have a mental health illness in 2024, according to the Los Angeles County Department of Mental Health (2024). Mental Health Services Report 2024. The three most common conditions are bipolar disorder, depression, and anxiety disorders. While behavioral disorders are common, each individual’s experience is unique.

What are The Types of Behavioral Disorders?

The types of behavioral disorders are Attention-Deficit/Hyperactivity Disorder (ADHD), Oppositional Defiant Disorder (ODD), and Conduct Disorder, among others. These disorders manifest in children but persist into adulthood if untreated.

The common types of behavioral disorders are given below:

Attention-Deficit/Hyperactivity Disorder (ADHD)

Attention-Deficit/Hyperactivity Disorder (ADHD) is a chronic condition characterized by symptoms of inattention, hyperactivity, and impulsivity. It affects approximately 5.3% of children and adolescents worldwide. ADHD is categorized into three main types: Predominantly Inattentive, Predominantly Hyperactive/Impulsive, and Combined, according to the National Institute of Mental Health Research titled “Attention-Deficit/Hyperactivity Disorder: What You Need to Know.”

The Predominantly Inattentive type of Attention-Deficit/Hyperactivity Disorder (ADHD) involves difficulty focusing, organizing tasks, and staying on track. The Predominantly Hyperactive/Impulsive type is marked by excessive movement and impulsive behaviors such as interrupting others or acting without thinking. The Combined type presents with a mix of both inattentive and hyperactive/impulsive symptoms. 

Oppositional Defiant Disorder (ODD)

Oppositional Defiant Disorder (ODD) is characterized by a pattern of angry or irritable mood along with defiant behavior. Children with ODD argue with authority figures, deliberately annoy others, blame others for their mistakes, or are touchy or easily annoyed. 

Approximately 92% of individuals with lifetime ODD meet criteria for at least one other DSM-IV disorder, including mood, anxiety, impulse-control, and substance use disorders, according to Nock MK et al. 2007 study titled, “Lifetime Prevalence, Correlates, and Persistence of Oppositional Defiant Disorder” published in the Journal of Child Psychol Psychiatry. Symptoms include frequent arguing with adults or refusing to comply with requests from authority figures.

Conduct Disorder

Conduct Disorder (CD) involves persistent patterns of behavior that violate social norms or the rights of others. This includes aggression towards people or animals, destruction of property, deceitfulness/theft, and serious violations of home/school/workplace rules. 

Conduct Disorder affects males approximately twice as females, with a male/female ratio of about 2:1 to 2.5:1, according to Fairchild G et al. 2019 study titled “Conduct Disorder,” published in the Journal of Nature Review Disease Primers. Symptoms include bullying/threatening/intimidating others, initiating physical fights, using weapons to cause harm, and engaging in thefts involving confrontation. For all these disorders, ADHD, ODD, and CD, early diagnosis followed by appropriate treatment improves outcomes for affected individuals.

What are the Symptoms of Behavioral Disorders?

The symptoms of behavioral disorders are inattention, hyperactivity, impulsivity, frequent tantrums, isolation, poor academic performance, drug use, criminal activity, easyly getting annoyed and blaming others for mistakes. These disorders manifest as disruptive behaviors that cause problems in various settings.

The common symptoms of behavioral disorders are given below:

• Inattention: Difficulty concentrating or focusing on tasks.
• Hyperactivity: Excessive restlessness or fidgeting.
• Impulsivity: Acting without thinking, interrupting others, or having trouble waiting for one’s turn.
• Frequent tantrums: Outbursts of anger or frustration.
• Isolation: Social withdrawal from friends and family.
• Poor academic performance: School grades decline due to difficulty following instructions or completing tasks.
• Drug Use: Engaging in substance abuse as a coping mechanism for stress or emotional issues.
• Criminal Activity: Engaging in illegal activities due to impulsivity or defiance against authority.
• Easily annoyed or nervous: Displaying irritability even under normal circumstances.
• Blaming others for mistakes.

What causes behavioral disorders?

The causes of behavioral disorders are biological, psychological, and environmental factors. These disorders are influenced by genetic predispositions, brain chemistry imbalances, and life experiences such as trauma. Understanding these causes is crucial for effective intervention.

Common causes of behavioral disorders are given below:

• Genetics: Genetics refers to inherited traits from parents predisposing individuals to certain conditions. It affects behavioral disorders by increasing the likelihood of developing conditions like ADHD or mood disorders if there is a family history. ADHD is highly heritable, with estimates suggesting that 74% of its variance is attributed to genetic factors, according to Faraone, S. V., & Larsson, H. et al. 2018 study titled “Genetics of Attention Deficit Hyperactivity Disorder” published in the Journal of  Molecular Psychiatry.
• Brain Structure: Brain structure involves brain regions’ physical organization and functioning. Abnormalities in areas like the amygdala or prefrontal cortex lead to emotional regulation issues and contribute to behavioral disorders, as reviewed by Schumann, C. M. et al. 2010 study titled, “Abnormal Structure or Function of the Amygdala is a Common Component of Neurodevelopmental Disorders” published in the Journal of Neuropsychologia.
• Pregnancy Complications: Pregnancy complications refer to adverse events during pregnancy that affect fetal development. These complications increase the risk of later developmental or behavioral problems in children. Approximately 46.9% of women experience at least one pre-specified pregnancy complication, with fetal abnormalities being the most common (24.7%) followed by early or threatened labor (16.3%), according to Law A et al. 2015 study titled, ” The Prevalence of Complications and Healthcare Costs During Pregnancy” published in the Journal of Medical Economics. 
• Sex or Gender: Gender differences influence susceptibility to specific mental health conditions due to hormonal variations and societal expectations but do not directly cause behavioral disorders, according to Linzer Et al. ‘s 1996 study titled”Gender, Quality of Life, and Mental Disorders in Primary Care,” published in the American Journal of Medicine. 
• Trauma: Trauma refers to distressing life events such as abuse or loss. It affects behavior by leading to stress-related mental health issues like PTSD, which disrupts emotional stability and behavior. 

In a registry analysis at a National Referral Hospital, road traffic injuries were identified as the leading cause (41.7%), followed by assaults (25.3%) and falls (18.9%). The hospital mortality rate was around 4.4%, with close to 1% dying in the emergency department, according to Botchey IM Jr et al. 2017 study titled “Understanding patterns of injury in Kenya,” published in the Journal of Surgery. 

What are the Risk Factors for Behavioral Disorders?

The risk factors for behavioral disorders involve both genetic and environmental influences and include temperament, learning difficulties, intellectual disabilities, and substance abuse. These factors stem from early life experiences and ongoing conditions in adults. 

The common risk factors of behavioral disorders include:

• Temperament: Difficult or aggressive temperament from an early age predisposes individuals to behavioral disorders. Emotional temperament in infancy predicts higher levels of emotional and behavioral difficulties at 5.5 years of age, according to Abulizi, X. et al. 2017 study titled “Temperament in Infancy and Behavioral and Emotional Problems at Age 5.5,” published in the Journal of  PLOS ONE.
• Learning difficulties: Problems with reading and writing correlate with behavior issues.
• Intellectual disabilities: Individuals with intellectual disabilities are likely to experience behavioral disorders. A study found that 60.4% of adults with ID had at least one behavior disorder, including aggression, self-injurious behavior, and temper tantrums, as reviewed by Deb S et al. 2001 study titled, “Mental Disorder in Adults With Intellectual Disability” published in the Journal of Intellectual Disability Research.
• Substance Abuse: Substance abuse is a significant risk factor, potentially linked to genetic predispositions or environmental exposures. For example, in 2018-2019, estimated prevalence rates were 20.27% for alcohol use disorders, 7.57% for cannabis use disorders, 3.46% for opioid use disorders, and 1.91% for stimulant use disorders, according to Mojtabai R. et al. 2022 study titled, “Estimating the Prevalence of Substance Use Disorders in the US Using the Benchmark Multiplier Method” published in the Journal of JAMA Psychiatry.

How are Behavioral Disorders Diagnosed?

The diagnosis of behavioral disorders begins with in-depth interviews with the individual, their family members, and sometimes teachers or caregivers to gather information about the person’s background, symptoms, and behavior patterns. This is followed by using standardized questionnaires or behavior checklists to assess how these behaviors affect daily life. A mental status examination also evaluate appearance, behavior, self-reported symptoms, mental health history, and current life circumstances.

In some cases, additional assessments include consultations with specialists such as psychologists or psychiatrists who provide further insights into cognitive function and emotional well-being. For specific disorders like autism or attention deficit hyperactivity disorder (ADHD), specialized tests are used. For instance, autism testing involves observing communication skills and includes hearing or vision tests if necessary. 

While there are no definitive medical tests for diagnosing mental illnesses directly (e.g., blood work), healthcare providers might conduct physical exams or lab tests to rule out other conditions that could mimic behavioral disorder symptoms.

The diagnostic process also involves comparing observed behaviors against established criteria from manuals like the Diagnostic and Statistical Manual of Mental Disorders (DSM) to determine if they meet the requirements for a specific disorder. Additionally, determining other potential causes for observed behaviors is crucial before diagnosing. This systematic approach ensures that any treatment plan developed is tailored to address the specific needs of the individual.

What are the Treatments for Behavioral Disorders?

The treatments for behavioral disorders are Behavioral Therapies, Medications, Support Groups, Partial Hospitalization Programs (PHP), and Intensive Outpatient Programs (IOP).

The treatments for behavioral disorders are listed below.

• Behavioral Therapies: Behavioral therapies include cognitive-behavioral therapy (CBT), dialectical behavioral therapy (DBT), and other forms of treatment that focus on changing maladaptive behaviors. Behavioral therapies are helpful for behavioral disorders as they teach individuals strategies to manage destructive impulses and improve emotional regulation. 

A meta-review of 494 systematic reviews involving 221,128 participants found that CBT produces a modest benefit across conditions on health-related quality of life, with a standardized mean difference of 0.23 (95% CI 0.14-0.33, I2 = 32%), according to Fordham B et al. 2021 study titled, “The Evidence for Cognitive Behavioural Therapy in Any Condition, Population or Context” published in the Psychology of Medicine Journal.

• Medications: These include antidepressants, anti-anxiety drugs, mood stabilizers, and antipsychotics, depending on the disorder. Medications help manage symptoms such as anxiety, depression, or mood swings. The prevalence and treatment of affective and anxiety disorders are highest in individuals under 50 years old, according to Hollingworth SA et al. 2010 study titled “Prevalence, Treatment, and Antidepressant Medication Use,” according to the Australian and New Zealand Journal of Psychiatry.
• Support Groups: These provide a community setting where individuals share experiences and receive support from others facing similar challenges. Support groups help reduce feelings of isolation and promote social interaction. In the United States, there are over 500,000 support groups, with more than 6.25 million people using self-help groups, Joo, J. H. et al. 2022 study titled, “The Benefits and Challenges of Established Peer Support Programmes for Patients, Informal Caregivers, and Healthcare Providers” published in the Journal of Family Practice.
• Partial Hospitalization Programs (PHP) and Intensive Outpatient Programs (IOP): These offer structured treatment environments that provide intensive therapy and support without requiring entire hospitalization. PHPs are considered more cost-effective than inpatient care for patients who do not need 24-hour monitoring. They serve as an alternative to inpatient or outpatient treatment, depending on symptom severity and family burden, according to Rubenson MP et al. 2022 study titled, “Patient Outcomes in Transdiagnostic Adolescent Partial Hospitalization Program,” published in the Journal of American Academy of Child Adolescence Psychiatry.

Can Behavioral Disorders be Prevented?

Yes, behavioral disorders are preventable, or their impact are significantly reduced through early intervention and targeted strategies. The prevention science approach emphasizes the importance of addressing risk and resilience factors early in development, particularly in early childhood programs. This approach includes universal, selective, and indicated preventive interventions. 

Universal prevention targets the general population, selective prevention focuses on individuals at higher risk, and indicated prevention targets those showing early signs of disorders. It is estimated that preventing mental health disorders in youth save up to $247 billion annually in societal costs, according to according to Perou R, et al 2013 study titled, “Centers for Disease Control and Prevention (CDC). MMWR Supplements Journal.

What Lifestyle Changes Can Help With Behavioral Disorders?

The lifestyle changes that help with behavioral disorders are physical activity, nutrition, having enough sleep, having a good social connection and setting realistic goals. Physical activity is an important component, as regular exercise reduces symptoms of various disorders, including depression and anxiety, by enhancing mood and cognitive function. Nutrition also plays a vital role; a balanced diet rich in fruits, vegetables, and whole grains support mental health, while avoiding excessive caffeine and alcohol help manage symptoms. 

A meta-analysis of 16 randomized control trials found that moderate-intensity physical activity aids in treating depression, according to Kvam S, et al 2016 study titled, “Exercise as a Treatment for Depression” published in the Journal of  Affective Disorder.

Restorative sleep is important for mental health, as it helps regulate emotions and cognitive processes. Mind-body and mindfulness practices, such as meditation and deep breathing, reduce stress and improve emotional regulation. Social connections are needed for support and stress management, emphasizing the importance of maintaining strong relationships and community ties. 

Lastly, setting realistic goals and seeking support from professionals or loved ones facilitate lasting lifestyle changes. These strategies are adapted and integrated into daily life to promote behavioral health and complement other treatments.

What is the Most Common Behavioral Disorder in Children?

The most common behavioral disorders in children is the Attention Deficit Hyperactivity Disorder (ADHD). ADHD is frequently noted as one of the most prevalent, with a prevalence of over 5% in children and adolescents, according to Drechsler R, et al 2020 study titled, “Current Concepts and Treatments in Children and Adolescents” published in the Journal of Neuropediatrics. 

ADHD is characterized by symptoms of inattention, hyperactivity, and impulsivity. It affects boys more than girls, with boys being three times as likely to have ADHD. ODD, which involves a pattern of negative, hostile, and defiant behavior, affects about 10% of children under the age of 12, with boys being affected twice as girls, according to Ogundele, M. O. et al 2018 study titled, “Behavioural and Emotional Disorders in Childhood” published in the Journal of World Journal of Clinical Pediatrics.

How Can Parents Help Children With Behavioral Disorders?

Parents can help children with behavioral disorders by implementing several supportive strategies. Parent support is crucial, as it involves providing a stable and nurturing environment that encourages positive behaviors. Clear communication is essential, allowing parents to effectively convey expectations and consequences while maintaining a calm demeanor during challenging situations. 

Participating in activities with their child strengthens the parent-child bond and provide opportunities for positive reinforcement. Seeking professional help, such as family therapy or parent management training, provide parents with tailored strategies to address specific behavioral challenges. By combining these approaches, parents impact their child’s behavioral development and overall well-being.

What are the Complications of Untreated Behavioral Disorders?

The complications of untreated behavioral disorders are personality disorders, problems at school or work , drug and alcohol abuse, increased risk of injury increases, violations of the law ,problems with relationships and suicide due to social isolation.These complications lead to personal and professional challenges. 

The common complications of untreated behavioral disorders include:

• Personality Disorders: Long-lasting patterns of thinking and behavior that disrupt relationships and daily life.
• Problems at School or Work: Difficulty maintaining academic or professional success due to behavioral issues.
• Drug and Alcohol Abuse: Increased risk of substance use disorders, which worsen mental health issues.
• Increased Risk of Injury: Higher likelihood of physical harm to oneself or others due to aggressive behavior.
• Violations of the Law: Legal issues arising from disruptive or violent behavior.
• Problems with Relationships: Difficulty forming and maintaining healthy interpersonal connections.
• Suicide due to Social Isolation: Increased risk of suicidal thoughts or behaviors resulting from social isolation and lack of support.

Can Untreated Behavioral Disorders Cause Mental Health Disorders?

Yes, untreated behavioral disorders contribute to the development of mental health disorders. Behavioral disorders, such as conduct disorder or oppositional defiant disorder, manifest in childhood and lead to various mental health issues if left untreated. 

Internalizing and externalizing problems in childhood and adolescence are associated with impaired mental health, lower life satisfaction, and poorer quality of life in adulthood. Approximately 90% of individuals diagnosed with ODD will be diagnosed with another mental illness in their lifetime, including anxiety disorders, mood disorders, and substance abuse, according to Riley M,  et al 2016 study titled, “Common Questions About Oppositional Defiant Disorder” published in the Journal of American Family Physician.

For instance, children with externalizing problems are at an increased risk of later substance use and lower educational success, while those with internalizing problems are more likely to experience mental health disorerders like anxiety and depression. 

Can Anxiety and Depression Lead to BehavioralDisorders?

Yes, anxiety and depression contribute to the development of behavioral disorders. Anxiety disorders, for instance, occur with various behavioral issues, including maladaptive health behaviors such as smoking and alcohol use, which worsen the risk of other medical conditions, according to Lin, Y., et al 2024 study titled, “The Relationship Between Anxiety and Depression in Adolescent Depression Patients” published in the Heliyon Journal.

Among children aged 3-17 years, 7.1% have current anxiety problems, and 3.2% have current depression. Nearly 80% of those with depression received treatment in the previous year, compared with 59.3% of those with anxiety problems, according to Ghandour RM,et al 2019 study titled, “Prevalence and Treatment of Depression, Anxiety, and Conduct Problems in US Children” published in the Journal of Pediatrics. 

Depression co-occurs with anxiety and lead to impulsive behaviors or mood swings, further complicating behavioral regulation. Individuals with untreated mental health issues, including anxiety and depression, are more likely to experience distress and negative impacts on their quality of life and academic performance, which manifest as behavioral problems. 

In the U.S., only about 42.6% of adults with psychiatric illnesses received care in 2017, according to Sher, L  et al 2020 study titled, “Individuals With Untreated Psychiatric Disorders and Suicide in the COVID-19 Era”  published in the Brazilian Journal of Psychiatry.