Understanding Teen Co-Occurring Disorders
What Is a Co-Occurring Disorder?
Co-occurring disorders refer to the simultaneous presence of at least one mental health disorder and at least one substance use disorder in an individual.
For teens, these challenges are deeply interconnected—substance use rarely appears on its own. Instead, it often develops as a response or coping strategy to underlying emotional pain, trauma, or untreated mental health conditions..
At Muir Wood Teen, we view substance use through the lens of underlying mental health and trauma. We don’t treat substance use in isolation. Instead, we use an integrated dual-diagnosis approach that supports the whole individual—emotionally, mentally, physically, and socially. By addressing root causes and involving families as partners in the healing process, we create a supportive environment where teens can safely begin long-term recovery.
-David E. Smith PhD
Understanding Co-Occurring Disorders in Teens
When a teen is struggling, the challenges they face rarely exist in isolation. Mental health conditions like anxiety, depression, and trauma often go hand-in-hand with substance use—each influencing and intensifying the other. This is what clinicians call co-occurring disorders, and understanding how they connect is essential to effective treatment.
At Muir Wood, we believe all behavior is a form of communication. Substance use, self-harm, withdrawal, and other concerning patterns are often attempts—however misguided—to cope with underlying emotional pain. A teen dealing with undiagnosed anxiety may turn to alcohol to quiet racing thoughts. One struggling with depression might use marijuana to feel something other than emptiness. Trauma survivors may rely on substances to numb painful memories or regulate overwhelming emotions.
“Addiction in teens often begins with emotional pain. The earlier we understand what a young person is going through, the more effectively we can step in—not just to treat, but to prevent long-term suffering.” Dr. David E. Smith, Chair of Addiction Medicine at Muir Wood
Why Integrated Treatment Matters
For decades, the treatment industry artificially separated mental health care from substance use treatment—often addressing them in different programs or even different facilities. But this approach misses the point. When one condition fuels the other, treating them separately rarely leads to lasting change.
At Muir Wood, we take an integrated approach. Our clinical team addresses both mental health and substance use together, recognizing that:
- Substance use is often a symptom of deeper emotional distress, not the root cause
- Untreated mental health conditions significantly increase the risk of relapse
- Teens need to develop healthy coping skills to replace harmful ones
- Healing the underlying pain is what makes recovery sustainable
What Integrated Treatment Looks Like
Our multidisciplinary team—psychiatrists, therapists, nurses, and recovery counselors—works together to understand the full picture of what your teen is facing. Treatment addresses:
- The mental health foundation: Anxiety, depression, trauma, mood disorders, and other conditions that may be driving substance use or other harmful behaviors
- Substance use patterns: Understanding triggers, building relapse prevention skills, and developing healthier ways to cope
- The connection between them: Helping teens recognize how their emotions, thoughts, and behaviors interact—and how to interrupt destructive cycles
- Self-regulation skills: Teaching teens to manage thoughts, emotions, and impulses effectively without reverting to substances or other maladaptive coping strategies
By treating the whole person rather than isolated symptoms, we help teens build a foundation for lasting recovery—not just sobriety, but genuine emotional wellness and resilience.
As Dr. David E. Smith, Chair of Addiction Medicine at Muir Wood and a pioneer in adolescent addiction care, explains:
“You can’t treat addiction in a vacuum—especially in teens. When we separate substance use from mental health, we miss the real story. True healing only happens when we treat the whole person.”
Why Are Adolescents Especially Vulnerable to Co-Occurring Conditions?
Adolescents are vulnerable to co-occurring disorders because their brains are still developing, and environmental or genetic factors can make teens particularly vulnerable to existing and/or developing mental health challenges.
Disorders such as depression, bipolar disorder, attention-deficit/hyperactivity disorder (ADHD), and anxiety are common at this age.
Common Mental Health Disorders That May Co-Occur With Substance Use
Can Anxiety Disorders Co-Occur With Substance Use in Teens?
Yes, anxiety disorders and substance use can frequently co-occur in teens.
Anxiety is among the most common mental health challenges teens face.
Teens may struggle with generalized anxiety disorder (GAD), social anxiety disorder, panic disorder, or separation anxiety disorder.
Self-medication with drugs or alcohol can worsen anxiety symptoms. This can create a cycle where the teen experiences anxiety, uses substances to cope, and then experiences heightened anxiety again, making timely support critical.
Do Bipolar Disorders and Mood-Related Challenges Contribute to Substance Abuse?
Yes, bipolar disorders and mood-related challenges can increase the risk of substance use when they are not addressed or diagnosed.
Understanding the type of bipolar disorder can help guide effective treatment:
- Bipolar I disorder: Manic episodes lasting seven days or more, followed by at least a two-week depressive period
- Bipolar II disorder: Hypomanic episodes, which are less severe, with depressive episodes
- Cyclothymia: Fluctuating hypomanic and depressive symptoms that are less intense
Can ADHD and Impulsivity Lead to Substance Use?
Yes. Inattention, hyperactivity, and impulsivity can increase a teen’s likelihood of engaging in substance use.
Addressing ADHD alongside co-occurring substance use is crucial for safety and long-term wellness.
Can Post-Traumatic Stress Disorder (PTSD) Lead to Self-Medication with Substances?
Yes. PTSD can make it difficult for teens to regulate complex emotions, sometimes leading to impulsivity, self-harm, or substance use.
Other trauma-related disorders, such as complex PTSD (C-PTSD), acute stress disorder (ASD), and dissociative disorders, may also prompt substance use as a coping mechanism.
How Can Eating Disorders Lead to Substance Use Issues?
Substance use can become a way to cope with the overwhelming feelings of disordered eating for teens struggling with disordered eating or body image concerns.
Are There Other Mental Health Conditions That Can Lead to Substance Use?
Depressive disorders, including major depressive disorder (MDD) or seasonal affective disorder (SAD), are common in adolescents and can lead to substance use as a way to cope.
Teens may also face anger management issues, personality disorders, grief, self-harm, sleep disorders, obsessive-compulsive disorder (OCD), other mood disorders, or conduct disorders.
Signs & Symptoms of Co-Occurring Disorders in Teens
Signs that a teen might have a co-occurring disorder include sudden mood swings, behavioral changes, substance use, withdrawal, and emotional struggles.
What Are Some Behavioral Changes to Be Aware of?
Parents should pay attention to specific behaviors that may indicate their teen is struggling with substance use, mental health challenges, or both. These behaviors could include:
- Social withdrawal
- Increased secrecy
- Academic decline
- Eating habit changes
- Extreme emotional outbursts or mood swings
- Self-harm, risk-taking, or violence
- Poor impulse control
- Sudden routine shift
Observing these signs early allows parents to seek support and interventions that can help their teen before issues escalate.
What are Some Warning Signs of Substance Use or Drug Abuse in Young People?
Many warning signs are not always visible; parents should watch for both behavioral and physical changes, including:
- Neglecting school, home, work, or extracurricular responsibilities
- Sudden shift in social circle or social isolation
- Increased tension in family relationships
- Losing interest in hobbies
- Academic decline
- Getting in trouble at school or with the law
- Insomnia/drowsiness
- Sleep habit changes
- Different eating habits
- Weight fluctuation
- Heart problems, liver damage, or cancer
Teens with SUD often dedicate a large portion of their time to obtaining, using, or recovering from substances. They may also develop an increased tolerance.
What Are Some Emotional and Mental Health Symptoms to Watch For?
Parents should be aware of changes that could indicate both a mental health disorder and substance use issues, such as:
- Sudden mood swings
- Increased feelings of hopelessness or worthlessness
- Irritability, agitation, or anger
- Increased fear, anxiety, or paranoia
- Attitude or personality changes
- Lack of motivation
- Difficulty expressing and regulating emotions
- Thoughts of self-harm or suicidal ideation
What are Some Signs of Impulsivity, Risky Behaviors, and Self-Harm?
When mental health challenges and substance use occur together, teens may act impulsively in ways that put themselves or others at risk, including engaging in the following:
- Driving under the influence
- Engaging in unsafe sexual activity
- Acting violently
- Using substances or alcohol when they know it’s harming them
- Putting themselves in dangerous situations to obtain drugs or alcohol
These behaviors signal that a teen may need immediate professional support to ensure safety and begin effective treatment.
Can Social and Academic Struggles Indicate Deeper Issues?
Yes. Changes in school performance or social connections can indicate co-occurring disorders.
It is important to monitor any changes in the child’s school or social habits and determine what may be causing them.
Signs parents may notice include:
- Academic decline: Poor grades, skipped assignments, or decreased motivation
- Social withdrawal: Pulling away from friends or family without explanation
- Sudden change in peer group: Associating with peers who encourage substance use or risky behaviors
Risk Factors for Developing Co-Occurring Disorders
Do Genetic, Environmental, and Social Influences Impact Mental Health?
Yes. Surrounding environments (home, city, school, etc.), genetics, social life, and life experiences can all factor into the development of mental health disorders.
Teens, especially, are vulnerable as they are still developing physically, mentally, emotionally, and socially.
Exposure to violence, adverse childhood experiences (e.g., poverty, disease, etc.), or death when younger can lead to mental health complications. Bullying, peer pressure, and social isolation can also contribute. Schizophrenia, bipolar disorder, depression, autism, and ADHD, for example, are mental health disorders that can be inherited if there is a family history.
How Does Trauma & Stress Impact Adolescent Brain Development?
Trauma and stress can lead to difficulty and decline with emotional regulation, fear over-reactivity, remaining on high alert, altered memory, difficulty forming new memories, difficulty making decisions and learning, and altered connections between brain regions.
What Is the Connection Between Early Drug or Alcohol Use and Mental Illness?
The developing adolescent brain can be altered due to early substance use.
It can hinder the development of healthy coping skills and/or heighten existing mental health problems. Substance use can disrupt dopamine and serotonin production, for example, and lead to brain imbalances that cause mental illness development.
How Co-Occurring Disorders Are Diagnosed in Teens
What Role Do Mental Health Providers and Clinicians Play in Dual Diagnosis?
Clinicians work to identify and describe emotional and behavioral issues during evaluations and interviews.
Their assessment is used to develop personalized treatment plans for the dual diagnosis. The clinicians at Muir Wood use this testing to treat underlying causes of mental health and substance use, create a medication management strategy, and address interpersonal issues that may hinder long-term success.
How Do Evidence-Based Tools and the DSM-5 Help With Accurate Diagnosis?
Evidence-based tools, such as the DSM-5, provide research-supported diagnostic criteria that enhance reliability when assisting clinicians with diagnoses.
The DSM-5 considers a dual diagnosis when two or more SUDs or mental health disorders are identified.
It also guides professionals as to which integrated treatment approaches should be implemented, including evidence-based therapies and medication management.
Why Integrated Treatment Is Essential for Teens With Dual Diagnosis
Does Treating Mental Health and Substance Use Together Improve Outcomes?
Yes. Treating the two simultaneously significantly improves outcomes.
Muir Wood offers consistent, comprehensive treatment that allows teens to heal mentally, emotionally, and physically. We strive to ensure that all underlying causes of mental illness and addiction are addressed. Our integrated treatment model helps reduce the risk of relapse and improve your teen’s overall well-being by better meeting their emotional needs.
How Does Cognitive-Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and Other Modalities Help?
CBT teaches recognizing and changing unhelpful thoughts to improve emotions and behavior. DBT builds on CBT by adding mindfulness and acceptance skills for managing intense emotions, tolerating distress, and enhancing relationships.
Muir Wood Teen uses the following therapeutic modalities to help teens heal from co-occurring disorders:
- Psychotherapy (e.g., CBT and DBT)
- Medication-assisted treatment (MAT)
- Psychiatry and medication management
- Comprehensive family programming
- Experiential activities (e.g., music, meditation, art, and yoga)
- Adventure therapy
- Fitness and nutrition
- 12-Step programs
What Is The Role of Group Therapy, Family Therapy, and Support Groups?
Group therapy, support groups, and family therapy help teens build the tools they need to thrive in life beyond treatment.
Teens are surrounded by their peers at Muir Wood. In group therapy, they communicate effectively, listen, support others, and build relationships rooted in recovery. Support groups, like 12-Step programs, help teens navigate post-treatment life and overcome challenges. These groups remind teens of their goals, progress, and hope.
Muir Wood Teen also offers a family program. In family therapy, you stay up-to-date with your teen’s recovery journey and goals. With your child, you strengthen your relationship, communicate healthily, and offer support.
How Does Building a Personalized Treatment Plan Lead to Long-Term Wellness?
When treated individually, teens benefit more from the therapies and treatments they engage in.
Their plan is catered towards their needs, whether related to their co-occurring disorders or not. Teens learn healthy coping mechanisms tailored to their specific lives. Post-treatment, they have the resources and skills to turn to in times of need.
How Families Can Support a Teen With Co-Occurring Disorders
How Do I Start the Conversation with a Loved One?
It’s not always easy to initiate an intervention with your child. If you recognize warning signs, it’s important to sit your teen down and share your concerns.
Restating house rules about substance use, setting restrictions, and providing proof of substance use are part of interventions. It’s also important to praise your child for things they’ve done right.
In an intervention, you should help your teen break through denial and stress individuality when their social life is involved in substance use. Compassion and motivation should always be at the center of your conversation to help them decide to start treatment.
Should I Partner With Healthcare Providers & Treatment Centers?
Muir Wood Teen can connect you with family mediators, experts, or sober escorts to assist in the intervention.
They offer a third-party perspective to answer questions you or your child has and offer moral support throughout the intervention and transition into treatment.
How Does Family Therapy Help Heal Relationships and Improve Recovery?
Family therapy heals the relationship between you and your child.
Safe, healthy communication is established to restore support and trust. When teens feel supported by loved ones, recovery during and after treatment is less overwhelming and isolating.
Choosing the Right Co-Occurring Disorder Treatment Program for Your Teen
What Do I Need to Look for in a Residential or Outpatient Treatment Center?
When choosing a residential or outpatient treatment program, look for one that is accredited, features qualified, experienced staff, evidence-based treatment approaches, and personalized care plans in a supportive environment.
Families should consider the following when finding treatment:
- Program and facility licensure and accreditation*
- Independent accreditation*
- Licensure and credentials of clinical staff
- Academic continuity
- Family involvement
- Treatment types and therapeutic approaches
- Individualized treatment progress
- Length of stay in residential programs
- Safety and well-being
- Communication with therapists and the clinical team
- Aftercare support
- Alumni outcomes and parent feedback
What Are The Benefits of Trauma-Informed, Evidence-Based Care for Adolescents?
Evidence-based, trauma-informed care helps teens recover from underlying emotional challenges and behaviors.
What Are Some Questions to Ask Providers About Dual Diagnosis Treatment Programs?
When searching for a dual diagnosis treatment center, families may ask about:
- Mental health and SUDs: what they do and do not treat
- Therapies and approaches implemented
- Gender-separated programs
- Client-to-staff ratio
- Number of teens treated at once
- Information about staff
- Program and facility accreditation
- If the program is in-network with their insurance
Life After Treatment: Supporting Continued Growth and Healing
How Important Are Aftercare, Support Groups, and Relapse Prevention Strategies?
Whether a partial hospitalization program, IOP, or other outpatient services, it’s important to know your aftercare options and what is best for your child after residential treatment.
Families are encouraged to participate in a parent aftercare class and a weekly parent support group. Muir Wood Teen offers a weekly teen alumni support group on Zoom for those who have completed residential treatment. This keeps teens connected to peers and others who have gone through similar journeys while navigating post-treatment life.
How Can Teens Build Coping Skills and Positive Habits?
Evidence-based therapies and treatments, experiential therapies, and a support network contribute to your teen’s success in developing coping skills and positive habits.
How Can Parents Nurture Emotional Well-Being and a Healthy Future for Their Child?
Celebrating successes and progress is vital during and after treatment.
Healthy, consistent communication creates a space for them to be open about their progress or struggles with you. Your relationships continue to strengthen while supporting your teen and encouraging the healthy steps they’re taking.