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HomeConditionsOCD & Related DisordersObsessive-Compulsive Disorder
Mental Health Condition

Obsessive-Compulsive Disorder

To define Obsessive-Compulsive Disorder: Intrusive unwanted thoughts driving repetitive behaviors to reduce anxiety or prevent feared outcomes.

Overview

Description

Obsessive-Compulsive Disorder (OCD) is characterized by the presence of obsessions, compulsions, or both. Obsessions are recurrent and persistent thoughts, urges, or images that are intrusive and unwanted, causing marked anxiety or distress. Compulsions are repetitive behaviors or mental acts that an individual feels driven to perform in response to an obsession or according to rigid rules. These behaviors aim to reduce distress or prevent a feared event, but are excessive or not realistically connected to the event. The obsessions or compulsions cause significant distress, are time-consuming, or interfere with daily functioning.

Prevalence

12-month prevalence about 1.2% in the U.S.; similar rates in males and females, though males have earlier onset.

Age of Onset

Bimodal onset — one peak in childhood/adolescence and another in early adulthood.

DSM-5 Code

300.3

ICD-10 Code

F42

By HeyPsych Contributor
Reviewed by the HeyPsych Medical Review Board
Reviewed by the HeyPsych Medical Review Board
Board-certified psychiatrists and mental health professionals
Medical Review Board
Published: August 15, 2025
Last Updated: August 25, 2026
Last Reviewed: August 25, 2026

What is OCD?

What is OCD?

Symptoms

Symptoms

What It Looks Like

What It Looks Like

Lived Experience

Lived Experience

Getting Diagnosed

Getting Diagnosed

Treatment Options

Treatment Options

Similar Conditions

Similar Conditions

Common Questions

Common Questions

When to Seek Help

When to Seek Help

This information about mental health conditions is for educational purposes only. If you believe you may be experiencing symptoms of a mental health condition, please consult with a qualified healthcare professional for proper evaluation and diagnosis.

What's Next?

Explore ERP Therapy

Exposure and Response Prevention (ERP) is the gold standard psychological treatment for OCD, with strong evidence from randomized controlled trials.

Learn about CBT

Cognitive Behavioral Therapy, particularly when combined with ERP, is effective for OCD treatment.

Explore medication options

SSRIs, including sertraline, are FDA-approved first-line medications for OCD. Higher doses are often needed compared to depression treatment.

Fluvoxamine (Luvox)

Fluvoxamine is FDA-approved specifically for OCD and has strong evidence supporting its efficacy.

Questions to discuss with a professional

Helpful questions to bring to your appointment when discussing Obsessive-Compulsive Disorder

No validated self-assessment for this condition is currently available. Speaking with a healthcare provider is the recommended path for evaluation.

Find psychiatrists who may treat OCD

Connects users to psychiatrist directory with appropriate expectation setting about data limitations.