Group Therapy: How It Works, What to Expect, and Who It Helps

Group therapy is a form of psychotherapy in which one or more trained clinicians treat a small number of clients together as a group. Typically consisting of 5 to 15 members, therapy groups meet on a regular schedule — usually weekly — for 60 to 90 minutes per session. The group format is not simply individual therapy delivered to multiple people at once; it is a distinct therapeutic modality that harnesses interpersonal dynamics, shared experience, and collective support as active ingredients of change.

The concept of group therapy was formalized in the mid-20th century, with psychiatrist Irvin Yalom identifying what he called the therapeutic factors of group work. These include:

• Universality — the realization that others share similar struggles, which reduces isolation and shame
• Altruism — the experience of helping others, which strengthens self-worth
• Interpersonal learning — receiving honest feedback from peers about how one's behavior affects others
• Group cohesiveness — a sense of belonging and acceptance that mirrors healthy social bonding
• Catharsis — the opportunity to express emotions in a safe, witnessed space
• Imitative behavior — learning adaptive coping skills by observing other members
• Instillation of hope — seeing others at different stages of recovery provides motivation

Group therapy operates on the principle that many psychological difficulties are fundamentally interpersonal in nature. Depression often involves withdrawal and isolation. Anxiety frequently centers on fear of judgment. Trauma disrupts trust. Personality disorders involve chronic relational patterns. The group setting provides a live social laboratory where these patterns surface naturally and can be addressed in real time, with the support of both the therapist and fellow members.

Groups can be open (new members join on a rolling basis) or closed (a fixed set of members begins and ends together). They can also be structured, following a manualized curriculum like a cognitive-behavioral skills group, or process-oriented, focusing on the spontaneous interactions and emotions that emerge among members.

Group therapy is not a single approach but a broad category encompassing several distinct formats, each with its own structure, goals, and theoretical foundation.

Psychoeducational groups focus on teaching specific skills and information. Members learn about their condition — such as depression, bipolar disorder, or substance use — and acquire concrete coping strategies. These groups are highly structured, often following a set curriculum over a defined number of sessions. They are common in hospital settings, intensive outpatient programs (IOPs), and community mental health centers.

Cognitive-behavioral therapy (CBT) groups apply the principles of CBT in a group format. Members learn to identify and challenge distorted thinking patterns, practice behavioral experiments, and develop healthier coping responses. CBT groups are typically time-limited (8 to 16 sessions) and targeted toward specific conditions like social anxiety disorder, panic disorder, or insomnia.

Process-oriented (interpersonal) groups are the format most closely associated with Yalom's model. These groups are less structured and focus on the dynamics that emerge between members in the here and now. The therapist helps members notice relational patterns — avoidance, people-pleasing, hostility, withdrawal — and experiment with new ways of relating. Process groups are often longer-term and are especially effective for relational difficulties and personality disorders.

Support groups provide a space for individuals with a shared experience — grief, chronic illness, caregiving, addiction recovery — to connect and offer mutual encouragement. Some support groups are peer-led rather than clinician-led, and they prioritize emotional validation and shared understanding over formal therapeutic techniques.

Dialectical behavior therapy (DBT) skills groups are a core component of comprehensive DBT treatment. Members learn skills in four modules: mindfulness, distress tolerance, emotion regulation, and interpersonal effectiveness. DBT skills groups are highly structured and are typically combined with individual DBT therapy.

Trauma-focused groups bring together individuals with shared trauma histories — combat veterans, survivors of sexual assault, or individuals with complex PTSD. These groups use structured approaches and careful pacing to prevent retraumatization while fostering healing through shared narrative and witnessing.

Group therapy is used across a remarkably wide range of mental health conditions and life challenges. It is rarely a last resort; in many clinical contexts, it is a first-line or co-occurring treatment alongside individual therapy or medication.

Depressive disorders: Group CBT and interpersonal process groups are well-supported treatments for major depressive disorder. The group setting directly counteracts the social withdrawal and isolation that characterize depression.

Anxiety disorders: Social anxiety disorder responds particularly well to group therapy, because the group itself serves as a graduated exposure environment. Group CBT is also effective for generalized anxiety disorder and panic disorder.

Substance use disorders: Group therapy is a cornerstone of addiction treatment. Research consistently shows that group formats are at least as effective as individual therapy for substance use, and they remain central to both inpatient and outpatient rehabilitation programs.

Personality disorders: The DSM-5-TR describes personality disorders as enduring patterns of inner experience and behavior that deviate markedly from cultural expectations, are pervasive and inflexible, and lead to clinically significant distress or impairment. Because these patterns are fundamentally relational, group therapy — particularly process-oriented and DBT skills groups — is considered a primary treatment modality. Borderline personality disorder (BPD), in particular, has a strong evidence base for group-based DBT.

Trauma and PTSD: Structured trauma-processing groups and present-centered therapy groups have demonstrated effectiveness for PTSD, including among military veterans and survivors of interpersonal violence.

Eating disorders: Group therapy is frequently used in the treatment of anorexia nervosa, bulimia nervosa, and binge eating disorder, often as part of a comprehensive treatment program.

Grief and bereavement: Bereavement support groups — both clinician-led and peer-led — help individuals process loss and adjust to life after the death of a loved one.

Chronic illness and pain: Psychoeducational and support groups help individuals with chronic medical conditions manage the psychological impact of their illness, reduce distress, and improve quality of life.

Life transitions: Divorce, retirement, career change, parenthood — group therapy provides support and perspective during periods of significant adjustment.

Starting group therapy can provoke significant anxiety, particularly for individuals who struggle with trust, vulnerability, or social situations. Understanding what actually happens in a group can reduce that anxiety considerably.

Before the group begins: Most group therapists conduct an individual screening or intake session before admitting a new member. This serves two purposes: the therapist assesses whether the group is a good fit for the individual's needs, and the individual has an opportunity to ask questions, voice concerns, and get a sense of the therapist's style. Not every person is appropriate for every group — therapists carefully consider group composition to ensure safety and therapeutic benefit for all members.

The first session: Early sessions typically involve introductions, a review of group rules (confidentiality, attendance expectations, respectful communication), and an initial discussion about what brings each person to the group. Members are not typically expected to share their deepest struggles immediately. Building trust is a gradual process.

Confidentiality: Confidentiality is a foundational rule of group therapy. Members are expected to keep everything discussed in the group private. Therapists cannot guarantee the behavior of other members, but they establish clear expectations and address any breaches directly. This is one of the most common concerns prospective members raise, and it is taken seriously.

A typical session: In a structured group, the therapist may begin with a check-in, introduce a skill or topic, facilitate discussion and practice, and close with reflection or homework. In a process group, sessions are less predictable — the therapist may open with a simple prompt ("What's on your mind today?") and allow the conversation to unfold organically, intervening to highlight patterns, encourage deeper exploration, or manage conflict.

Emotional intensity: Group therapy involves emotion. Members may cry, express anger, or sit with uncomfortable silence. Therapists are trained to manage emotional intensity and to ensure that the group remains a safe space. Members are encouraged to share at their own pace — there is no requirement to disclose more than feels manageable.

Duration of treatment: Time-limited groups typically run 8 to 20 sessions. Open-ended process groups may continue for months or years. The duration depends on the type of group, the severity of the concerns being addressed, and individual progress.

Ending treatment: In closed groups, termination is planned and often includes reflection on growth, saying goodbye, and planning for continued progress. In open groups, individual members leave when they and the therapist agree that goals have been met. The process of ending is itself therapeutically meaningful — it provides an opportunity to practice healthy goodbyes, which many group members have not experienced before.

Group therapy has a robust evidence base spanning decades of clinical research. It is not a lesser alternative to individual therapy — for many conditions, it is equally effective, and for some it offers unique advantages that individual therapy cannot replicate.

Overall effectiveness: A landmark meta-analysis by Burlingame, Fuhriman, and Mosier (2003), which synthesized data from over 100 studies, found that group therapy produced significant positive effects across a wide range of conditions and populations, with effect sizes comparable to individual therapy. Subsequent meta-analyses have consistently confirmed these findings.

Depression: Group CBT for depression has been shown to produce outcomes comparable to individual CBT, with the added benefit of reduced social isolation. The American Psychological Association recognizes group CBT as an empirically supported treatment for depression.

Social anxiety disorder: Group CBT is considered a first-line treatment for social anxiety disorder. Research demonstrates that the group format itself functions as a form of exposure therapy, allowing members to practice social interaction in a structured, supportive environment. Studies show significant and durable reductions in social anxiety symptoms.

Substance use disorders: Research from the National Institute on Drug Abuse (NIDA) and the Substance Abuse and Mental Health Services Administration (SAMHSA) consistently supports group therapy as a primary treatment modality for substance use. Group formats promote accountability, social learning, and the development of sober support networks.

Borderline personality disorder: DBT, which includes a mandatory group skills training component, is the most extensively researched treatment for BPD. Randomized controlled trials have demonstrated reductions in self-harm, suicidal behavior, hospitalizations, and emergency department visits. The group skills component is considered essential, not optional.

PTSD: Multiple randomized controlled trials support group-based treatments for PTSD, including cognitive processing therapy (CPT) delivered in group format. The Veterans Health Administration has widely implemented group CPT for combat-related PTSD.

Unique advantages of group therapy: Research highlights several benefits that are specific to the group format and difficult to replicate in individual therapy: normalization of experience (reducing shame), real-time interpersonal feedback, opportunities to practice social skills, development of empathy through witnessing others' struggles, and the powerful experience of helping others while receiving help.

Limitations of the evidence: While the evidence base is strong, there are areas where research is still developing. Studies comparing different types of groups (e.g., process vs. CBT) for the same condition are relatively scarce. Much of the research has been conducted with adult populations, and more studies are needed on group therapy with adolescents, older adults, and culturally diverse populations. Additionally, group therapy research faces methodological challenges — it is difficult to "blind" participants to their treatment condition, and group dynamics introduce variability that complicates standardized measurement.

Group therapy is generally safe and well-tolerated, but it does carry certain risks and limitations that prospective members and referring clinicians should consider.

Confidentiality cannot be fully guaranteed: While therapists set clear expectations and group members commit to confidentiality, the therapist cannot control what members do outside the group. Breaches of confidentiality can occur, and they can cause significant distress and damage to trust. This risk is inherent to the format and should be discussed openly during the intake process.

Not appropriate for all individuals: People in acute psychiatric crisis, those with active psychosis, individuals with severe antisocial traits, or those who are currently unable to tolerate interpersonal interaction may not be suitable for group therapy. Careful screening by the group therapist is essential. Individuals with a history of interpersonal violence or predatory behavior require especially careful assessment to protect other group members.

Social anxiety as a barrier: Paradoxically, the people who might benefit most from group therapy — those with social anxiety, shame, or avoidance — often find the idea of joining a group terrifying. This barrier is real but surmountable with preparation, therapist support, and gradual exposure.

Risk of re-traumatization: In trauma-focused groups, hearing others' trauma narratives can trigger distress. Skilled group therapists manage this through pacing, grounding techniques, and clear guidelines about what and how much to share. Poorly run trauma groups, however, can cause harm.

Interpersonal conflict: Conflict is a natural part of group dynamics and, when managed well, is therapeutically valuable. However, poorly managed conflict — including scapegoating, shaming, or dominant members monopolizing the group — can be harmful. The skill of the group therapist is the primary safeguard against these dynamics.

Less individualized attention: In a group of 8 to 12 members, each individual receives less direct therapist attention than in individual therapy. For people with complex needs that require intensive, personalized intervention, group therapy alone may be insufficient. Many clinicians recommend combining group and individual therapy for optimal outcomes.

Scheduling and commitment: Group therapy requires consistent attendance. Missing sessions disrupts the group process and reduces therapeutic benefit for the absent member and the group as a whole. The fixed schedule of group sessions can be challenging for people with unpredictable work hours or caregiving responsibilities.

Potential for negative influence: In rare cases, group members may reinforce maladaptive behaviors — for example, competitive symptom comparison in eating disorder groups, or glorification of substance use in poorly managed addiction groups. Skilled facilitation minimizes this risk, but it underscores the importance of choosing a well-trained, experienced group therapist.

Finding the right group therapy experience involves several steps: identifying the type of group that matches your needs, locating qualified providers, and assessing the fit.

Start with your current provider: If you are already seeing a therapist or psychiatrist, ask them about group therapy referrals. Many clinicians maintain networks of colleagues who run groups, and your individual therapist can help determine which type of group would be most beneficial for your specific concerns.

Professional directories: The American Group Psychotherapy Association (AGPA) maintains a directory of certified group psychotherapists at agpa.org. Psychology Today's therapist directory allows you to filter by "group therapy" as a treatment modality. The SAMHSA treatment locator (findtreatment.gov) is helpful for finding substance use treatment groups.

Community mental health centers: Publicly funded community mental health centers frequently offer group therapy at reduced cost or on a sliding scale. These groups are often psychoeducational or skills-based and may be available without a long wait.

Hospital and university-affiliated programs: Academic medical centers and training clinics associated with universities often run therapy groups led by supervised trainees. These can be an excellent, lower-cost option, and the supervision structure often ensures high-quality care.

Specialty clinics: For specific conditions — eating disorders, PTSD, borderline personality disorder, substance use — specialty clinics frequently offer group therapy as a core part of their programming. Comprehensive DBT programs, for example, always include a skills group component.

Questions to ask a potential group therapist:

• What is your training and experience in leading groups?
• What type of group is this (structured, process-oriented, support)?
• How many members are typically in the group?
• Is the group open or closed?
• How is confidentiality handled?
• What happens if I have a conflict with another member?
• Is there a screening or intake process before joining?
• What are the expectations around attendance?

Telehealth groups: Since the COVID-19 pandemic, many group therapists have transitioned to offering groups via video conferencing. Online groups expand geographic access significantly, though they may sacrifice some of the nonverbal richness of in-person interaction. Research on telehealth group therapy is still emerging, but early findings suggest comparable satisfaction and outcomes for many group types.

Group therapy is generally more affordable than individual therapy, making it an important option for expanding access to mental health care.

Cost: In private practice settings in the United States, group therapy sessions typically range from $40 to $100 per session, compared to $100 to $250+ per session for individual therapy. Some therapists charge as little as $25 to $50 per group session. The lower cost per session, combined with the frequency of weekly meetings, makes group therapy a cost-effective option for sustained treatment.

Insurance coverage: Many health insurance plans cover group therapy in the same way they cover individual therapy — with a copay per session. However, coverage varies widely by plan and provider. It is important to verify with both the group therapist and the insurance company whether a particular group is covered. Some insurance plans may cover certain types of groups (e.g., substance use treatment) more readily than others.

Sliding scale and low-cost options: Community mental health centers, nonprofit organizations, training clinics at universities, and some private practitioners offer group therapy on a sliding fee scale based on income. Peer-led support groups, such as those offered through NAMI (National Alliance on Mental Illness), DBSA (Depression and Bipolar Support Alliance), or 12-step programs, are typically free.

Geographic accessibility: Group therapy historically required a critical mass of participants in a single geographic area, which limited availability in rural and underserved communities. Telehealth has partially addressed this barrier, though reliable internet access remains an issue for some populations. Urban and suburban areas generally have more group therapy options, particularly for specialized groups.

Wait times: Because closed groups begin on a set schedule and open groups may have limited spots, there can be a waiting period before joining. This is particularly true for specialized groups such as DBT skills groups or trauma-processing groups, which may have wait lists of several weeks to months.

Cultural and language considerations: Access to group therapy that is culturally responsive and available in one's preferred language remains a challenge. Some communities and organizations offer groups specifically designed for LGBTQ+ individuals, racial and ethnic minority groups, veterans, or other specific populations. Seeking out these specialized groups can enhance the therapeutic experience and reduce barriers to participation.

Group therapy is one option within a broad landscape of mental health treatments. Depending on individual needs, preferences, and circumstances, the following alternatives or complementary approaches may be appropriate.

Individual psychotherapy: One-on-one therapy with a licensed clinician provides personalized attention and the ability to explore sensitive topics at one's own pace. Common modalities include cognitive-behavioral therapy (CBT), psychodynamic therapy, EMDR (Eye Movement Desensitization and Reprocessing), and acceptance and commitment therapy (ACT). For many conditions, combining individual and group therapy produces better outcomes than either alone.

Couples and family therapy: When psychological distress is closely tied to relationship dynamics, couples or family therapy directly addresses the interpersonal system. Approaches like Emotionally Focused Therapy (EFT) and structural family therapy can be highly effective for relational conflicts, communication problems, and the family impact of mental illness.

Medication management: Psychiatric medications — including antidepressants, anxiolytics, mood stabilizers, and antipsychotics — are a well-established treatment for many mental health conditions. Medication is often used in conjunction with psychotherapy, including group therapy, rather than as a standalone alternative.

Peer support programs: Organizations like NAMI, DBSA, and Alcoholics Anonymous offer peer-led groups that provide community, education, and mutual support. While not a substitute for professional treatment in many cases, peer support is an important complement and is especially valuable for ongoing recovery and relapse prevention.

Self-help and psychoeducation: Evidence-based self-help books, structured workbooks, and online programs (such as those based on CBT or DBT principles) can be effective for mild to moderate symptoms, particularly when combined with professional guidance. These resources are widely accessible and low-cost.

Intensive outpatient programs (IOPs) and partial hospitalization programs (PHPs): For individuals who need more support than weekly outpatient therapy but do not require inpatient care, IOPs and PHPs offer structured programming several hours per day, multiple days per week. These programs almost always include group therapy as a central component, along with individual therapy, psychiatric care, and skill-building activities.

Mind-body interventions: Mindfulness-based stress reduction (MBSR), mindfulness-based cognitive therapy (MBCT), yoga, and other mind-body practices have a growing evidence base for depression, anxiety, chronic pain, and stress-related conditions. Some of these are delivered in group formats, blurring the line between group therapy and wellness programming.

If you are experiencing persistent emotional distress, difficulty functioning in daily life, strained relationships, or patterns of behavior that you want to change, professional evaluation is an important first step. A licensed mental health professional can help you determine whether group therapy, individual therapy, medication, or a combination of approaches is most appropriate for your situation.

Consider group therapy specifically if:

• You feel isolated, disconnected, or struggle to relate to others
• You want to improve interpersonal skills, communication, or boundaries
• You benefit from hearing others' perspectives and shared experiences
• You have been in individual therapy and want to add a complementary treatment
• You are managing a condition with a strong evidence base for group treatment (such as social anxiety, BPD, substance use, or depression)
• You are looking for a more affordable long-term treatment option

Seek immediate help if you are experiencing:

• Thoughts of suicide or self-harm — contact the 988 Suicide & Crisis Lifeline by calling or texting 988
• A psychiatric emergency — go to your nearest emergency department or call 911
• Inability to care for yourself or maintain basic safety

Group therapy is not a sign that your problems are less serious or that you do not deserve individual attention. It is a distinct, powerful form of treatment that offers something no other modality can: the experience of healing in connection with others. For many people, discovering that they are not alone in their struggles is the moment that real change begins.