Obsessive-Compulsive Disorder (OCD): 2025 Statistics

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Obsessive-Compulsive Disorder (OCD) is a chronic and often long-lasting mental health condition characterised by uncontrollable, recurring thoughts (obsessions) and behaviors (compulsions). It is the fourth most common mental disorder, yet it is widely misunderstood and undertreated.

The headline statistic reveals a major barrier to care: on average, it takes a person 14 to 17 years from the onset of symptoms to receive a proper diagnosis and treatment for OCD. This significant delay underscores the critical need for greater awareness and improved access to effective interventions for the millions affected.

• Overall Prevalence and General Numbers
• Breakdown by Key Demographics
• Co-occurrence and Related Conditions
• The Most Serious Consequences
• The Positive Outlook and Solutions
• Conclusion
• Sources

Overall Prevalence and General Numbers

• U.S. Prevalence: An estimated 1.2% of U.S. adults had OCD in the past year, with a lifetime prevalence of 2.3%. This means approximately 1 in 40 U.S. adults will develop OCD at some point.
• Global Prevalence: Across 10 countries, OCD has a 12-month prevalence of 3.0% and a lifetime prevalence of 4.1%.
• Persistent Course: The high 12-month prevalence relative to lifetime prevalence suggests that when OCD develops, it is often a highly persistent and chronic illness.

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Breakdown by Key Demographics

• By Gender: In the U.S., the past-year prevalence of OCD is more than three times higher for females ( 1.8% ) than for males ( 0.5% ).
• By Age Group (U.S. Adults): OCD prevalence is highest among younger adults and decreases with age:
  • Ages 18-29: 1.5%
  • Ages 30-44: 1.4%
  • Ages 45-59: 1.1%
  • Ages 60+: 0.5%
• Age of Onset: The average age of onset for OCD is 19 years old, with more than 80% of cases beginning by early adulthood.

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Co-occurrence and Related Conditions

High Comorbidity: Approximately 2 in 3 adults with OCD have at least one other mental health disorder.

• Common Co-occurring Disorders: The most common conditions found alongside OCD are:
  • Major Depressive Disorder: 41% of people with OCD also have major depression.
  • Other Anxiety Disorders: 76% of people with OCD have another anxiety disorder.
• Early Onset Risks: An earlier age of onset for OCD is associated with more severe symptoms and higher rates of co-occurring ADHD and bipolar disorder.

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The Most Serious Consequences

• Severe Impairment: Half of all adults with OCD (50.6%) report serious impairment in their daily functioning, with another 34.8% reporting moderate impairment and 14.6% reporting mild impairment.
• Functional Interference: OCD symptoms are often time-consuming and cause significant distress that interferes with work, school, social activities, and family life.
• Severity of Cases: While most community cases are rated as mild (47%), nearly a quarter (22.9%) are considered moderate, and a smaller portion are severe (2.7%).

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The Positive Outlook and Solutions

• Treatment Effectiveness: Up to 80% of individuals with OCD experience significant improvement when they receive proper treatment, particularly Exposure and Response Prevention (ERP) therapy.
• The Treatment Gap: A stark gap exists in access to care. Globally, only 19.8% of people with OCD received any mental health treatment in the past year.
• Disparities in Access: This gap is dramatically wider based on economic status. Treatment rates in high-income countries are 40.5% , compared to just 7.0% in low- and middle-income countries.

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Conclusion

The statistics reveal OCD as a common, persistent, and highly impairing disorder that remains widely undertreated across the globe. The long delay in diagnosis and significant treatment gaps highlight an urgent need for increased public awareness, professional training, and accessible care. With proven, effective treatments available, closing this gap is essential to improving the quality of life for millions living with OCD.

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Sources

• National Institute of Mental Health (NIMH). (2024). Obsessive-Compulsive Disorder (OCD) Statistics.
• Stein, D. J., Scott, K., De Jonge, P., & Kessler, R. C. “Epidemiology of Anxiety Disorders: From Surveys to Services.” Dialogues in Clinical Neuroscience, vol. 23, no. 4, 2021, pp. 405–412. U.S. National Library of Medicine
• World Mental Health Surveys. (2025). Obsessive-compulsive disorder in the World Mental Health surveys.
• SingleCare. (2025). OCD statistics 2025: Facts about obsessive-compulsive disorder.
• Harvard Medical School. (2005). The National Comorbidity Survey Replication (NCS-R).
• Cleveland Clinic. (2022). Obsessive-Compulsive Disorder.
• Comprehensive Psychiatry. (2022). Global prevalence of obsessive-compulsive disorder.
• Psychological Medicine. (2014). Age of onset and clinical correlates in obsessive-compulsive disorder.
• The American Journal of Geriatric Psychiatry. (2018). Obsessive-Compulsive Disorder in Older Adults.
• Stanford Medicine. (2024). Obsessive-Compulsive Disorder Comorbidities.
• Anxiety and Depression Association of America. (2024). OCD Diagnosis and Treatment Delays.
• University of Florida College of Medicine. (2024). OCD Treatment Guidelines.
• Golden Steps ABA. (2024). 49 OCD Statistics: How Many People Have OCD?.
• Cenat, J. M., Felix, N., Blais-Rochette, C., Rousseau, C., Bukaka, J., Derivois, D., & Birangui, J. P. “Prevalence of Depression and Anxiety Among Children and Adolescents During the COVID-19 Pandemic: A Systematic Review and Meta-Analysis.” Journal of Affective Disorders, vol. 293, 2021, pp. 78–89. U.S. National Library of Medicine
• Merck Manual Consumer Version.(2023) “Obsessive-Compulsive Disorder (OCD).” MSD Manual
• International OCD Foundation (IOCDF). “OCD and Depression.”
• Yang, Ying-Jung, et al. “Temporal association between obsessive-compulsive disorder and suicidal behaviors: A systematic review and meta-analysis.” Journal of Affective Disorders, vol. 345, 2024, pp. 83–92. PubMed.

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