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Psychological therapies

Group therapyHow it works in addiction and mental health treatment, and what to expect in your first session

Reviewed by: Dr. Mahmoud El-Sawy Last updated: October 1, 2026 5 min read
The short answer

Group therapy is a form of psychotherapy led by a trained therapist with a small group of people facing similar problems, who meet regularly to learn skills, share experiences and support one another. It is one of the most widely used forms of addiction treatment in residential and outpatient programs, and it is also used for depression, anxiety and trauma. A 2019 analysis of 33 studies found a small positive effect of group therapy on abstinence, and other reviews have shown results similar to individual therapy.

  • It breaks the isolation and shame that feed addiction.
  • It is governed by clear rules, chief among them confidentiality and respect.
  • It works best alongside individual sessions and a comprehensive treatment plan.

“On the first day I said I wouldn’t talk; I’m not like them.” Then the person hears someone else’s story and finds themselves in it. That moment, discovering you are not alone, is what makes group therapy a powerful tool in recovery from addiction and mental illness.

What is group therapy?

Group therapy is a structured treatment session led by a trained psychotherapist, or two, with a limited number of participants, meeting at a fixed time. It has specific goals set by the therapist: teaching a skill, working through emotions, practicing communication, or preventing relapse. The US National Institute on Drug Abuse notes that residential and outpatient programs usually offer individual and group sessions together.

Types of group therapy

The most common types of therapy groups
TypeWhat happens in themExamples
PsychoeducationInformation about the illness, treatment and the brainWhat does a drug do to dopamine?
Skills developmentHands-on training in specific skillsRefusing an offer, anger management, emotion regulation
Group cognitive behavioral therapyAnalyzing thoughts and behaviors togetherIdentifying craving triggers
Processing and supportSharing feelings and experiences in depthGuilt, loss, relationships with family
Relapse preventionBuilding a personal exit planWhat do I do at my first invitation?

Why does group therapy help?

You are not alone

Seeing others go through the same experience eases shame and isolation.

Hope

Seeing people who have recovered before you is living proof that change is possible.

An honest mirror

Fellow group members notice denial and rationalizing faster than a person can on their own.

Giving

Helping others raises your confidence and gives you a sense of your own worth.

Practice for relationships

The group is a safe space to try out expressing yourself, apologizing and setting boundaries.

Commitment and follow-up

Attending regularly in front of others strengthens commitment to the plan.

Infographic on why groups heal: you are not alone, hope, an honest mirror, giving, practice for relationships, commitment and follow-up
Therapeutic factors that therapists describe within therapy groups.

Group therapy in addiction treatment

Addiction is an illness that thrives on secrecy and isolation, which is why group therapy has a central place in addiction treatment. In a group, the patient learns to talk about cravings instead of hiding them, hears how other people’s relapses began with small steps, and practices refusal skills. The US National Institute on Drug Abuse notes that group support is one of the behavioral approaches used to treat crystal meth (shabu) addiction, along with cognitive behavioral therapy and motivational interviewing.

As for the evidence, a 2019 analysis of 33 randomized trials found a small effect in favor of group therapy on abstinence, with a clearer improvement in mental state compared with no treatment. The researchers cautioned that the findings should be interpreted carefully because of limitations in the data. A review published in 2004 had concluded that studies generally show no difference in outcomes between group and individual therapy.

Group therapy in mental health conditions

Group therapy is used in depression, social phobia, post-traumatic stress disorder and other conditions. In depression specifically, a 2014 analysis of 35 studies found that group cognitive behavioral therapy was better than no treatment, though higher-quality studies are needed to compare it with more intensive treatments. For people with social anxiety, the group itself is practical training in the situations they fear.

What should you expect in your first group therapy session?

  1. The therapist introduces themselves and explains the group’s rules.
  2. Each participant introduces themselves as much as they wish, and no one is forced to speak.
  3. The session topic or the skill of the day is introduced.
  4. Those who wish share their experience, and others comment respectfully without hurtful advice.
  5. The session ends with a summary and sometimes a small task.

The difference between group therapy and support groups

Group therapy is led by a trained therapist as part of a treatment plan, whereas fellowship groups, such as twelve-step program groups, are led by people in recovery themselves, free of charge. The two complement each other: the first during treatment, and the second extending for years afterward as part of aftercare.

Group therapy at Eradah

At Eradah, groups are a daily part of residential treatment and part of outpatient treatment, alongside individual sessions and medical follow-up. Groups are also set aside for families as part of the family treatment program.

Frequently asked questions

Frequently asked questions about group therapy

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What is group therapy?

Structured therapy sessions led by a trained therapist with a small group whose members face similar problems.

Is group therapy helpful in addiction treatment?

Yes. It breaks isolation and teaches relapse prevention skills, and research shows a positive effect close to that of individual therapy.

Do I have to speak in a group therapy session?

No one is forced to speak. Each person shares as much as they feel comfortable with, then gradually more.

Is group therapy confidential?

Yes. One of its basic rules is that what is said inside the group is not repeated outside it.

What is the difference between group therapy and individual therapy?

Individual therapy focuses in depth on the details of your own situation, while group therapy adds support and learning from other people’s experiences. The two are often combined.

What is the difference between group therapy and fellowship groups?

Group therapy is led by a therapist as part of a treatment plan, while fellowship groups are led by people in recovery themselves and continue after treatment.

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