OCD
The obsession-compulsion loop, and the conditions inside it.
Reviewed by Shariq Refai, MD, MBA
OCD is one of the most specific conditions in mental health, with a specific loop structure and a specific evidence-based treatment (ERP). It's also frequently misdiagnosed as generic anxiety. This hub exists to give OCD its own clinical landing page and to make the distinct treatment path visible.
OCD is often misunderstood as being about neatness. It isn't. It's a loop: an intrusive thought arrives, the thought creates distress, the distress drives a behavior or mental act that briefly relieves it, the relief reinforces the loop. The content of the obsession varies; the loop doesn't.
Several related conditions share the same loop with different targets: body dysmorphic disorder, hoarding disorder, trichotillomania, excoriation. The cluster is sometimes called "obsessive-compulsive and related disorders."
The good news: OCD has a specific, well-studied, reliably effective treatment, exposure and response prevention (ERP). Combined with an SSRI at the right dose, ERP is what changes OCD. This hub is the map for the conditions, symptoms, and treatments in this cluster.
Conditions
Obsessive-compulsive disorder
How OCD works, the obsession-compulsion cycle, what intrusive thoughts mean, and why treatment like ERP helps.
Strong ConditionBody dysmorphic disorder
A condition defined by a painful preoccupation with perceived flaws in appearance that others don't see, or see as slight.
Strong ConditionHoarding disorder
A condition marked by persistent difficulty discarding possessions, leading to clutter that disrupts living spaces and causes distress.
Mixed ConditionTrichotillomania (hair-pulling disorder)
Repeated hair pulling that leads to noticeable hair loss and is hard to stop.
MixedPlanned coverage (4)
- Excoriation disorder (skin picking disorder)
- Substance or medication induced OCD
- OCD due to another medical condition
- PANDAS / PANS (pediatric onset)
Symptoms
Planned coverage (10)
- Obsessions
- Compulsions
- Mental rituals
- Checking behaviors
- Contamination fears
- Symmetry and just right urges
- Hoarding behaviors
- Avoidance of triggers
- Body focused repetitive behaviors
- Scrupulosity (religious or moral)
Treatments
Planned coverage (11)
- Exposure and response prevention (ERP)
- Cognitive behavioral therapy for OCD
- SSRIs (high dose)
- Clomipramine
- Antipsychotic augmentation
- Inositol
- Habit reversal training
- Intensive outpatient program for OCD
- Residential OCD treatment
- Deep brain stimulation (severe cases)
- Transcranial magnetic stimulation for OCD
Glossary
Planned coverage (10)
- Obsession
- Compulsion
- Intrusive thought
- Ego dystonic
- Reassurance loop
- Magical thinking
- Just right feeling
- Habituation
- Inhibitory learning
- Y-BOCS
Treatment Overview
OCD has a specific evidence based treatment, and the gap between recognition and the right care is one of the wider gaps in psychiatry. The treatment with the strongest evidence is exposure and response prevention (ERP), a specialized form of cognitive behavioral therapy that's distinct from generic CBT. ERP involves exposing yourself to the triggers of obsessions while preventing the compulsive response, gradually weakening the obsession compulsion loop. Most OCD patients respond meaningfully to ERP when it's delivered correctly by a clinician trained in it; the IOCDF directory is the cleanest way to find that clinician. SSRIs (fluoxetine, sertraline, fluvoxamine, paroxetine, citalopram, escitalopram) and the tricyclic clomipramine reduce OCD symptoms. OCD typically requires higher SSRI doses than depression treatment and a longer trial (10 to 12 weeks) to assess response. The combination of ERP and an SSRI usually outperforms either alone. For treatment resistant OCD, augmentation strategies (antipsychotic augmentation, glutamate modulators), intensive outpatient or residential ERP programs, and in severe cases neurosurgical options (deep brain stimulation, gamma knife capsulotomy) exist but require specialist evaluation. Generic talk therapy and reassurance, including from family members, can inadvertently reinforce the OCD loop and slow recovery. Family accommodation reduction is part of treatment for many patients.
Resources and Support Organizations
The organizations below are independent of Shrinkopedia and the Shrink Network. We list them because they're recognized national resources, not because we have any financial or organizational relationship with them. Most are free at the point of access.
- International OCD Foundation (IOCDF) National nonprofit for OCD specifically. Hosts a provider directory specifically for clinicians trained in ERP, plus education and family resources. iocdf.org
- Peace of Mind Foundation National nonprofit focused on OCD education and family support. peaceofmind.com
- OCD Action (UK based, internationally relevant) National charity offering helpline and support groups. ocdaction.org.uk
- TLC Foundation for Body Focused Repetitive Behaviors National nonprofit for trichotillomania, excoriation, and related conditions. bfrb.org
- ADAA (Anxiety and Depression Association of America) General anxiety and OCD resources, with a therapist finder. adaa.org
- 988 Suicide and Crisis Lifeline Free, confidential, 24 hours a day in the United States for any mental health crisis. Call or text 988
- SAMHSA National Helpline Free, confidential treatment referral and information service for individuals and families facing mental health or substance use disorders. 1-800-662-4357 (HELP)
- Find Treatment (SAMHSA) Federal directory of evidence based mental health and substance use treatment providers, searchable by location and insurance. findtreatment.gov
OCD overlaps with the broader anxiety category and frequently appears alongside eating disorders. These adjacent hubs cover the overlap.
Across the network
How the network covers this topic.
The Shrink Network covers this topic at multiple layers. Below is a quick map of which site does what for this category. For the full cross-network cluster view, see the matching Network Cluster at /clusters/.
See the full cross-network cluster for this topic at /clusters/obsessive-compulsive-disorder/
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Read a related condition →Want to understand more first?
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