Obsessive-compulsive disorder (OCD) is an anxiety disorder. A person with OCD has unwanted repetitive thoughts and behaviors.
The cause is of OCD is unknown. OCD may be due to a combination neurobiological, environmental, genetic, and psychological factors. An imbalance of a brain chemical called serotonin may play a major role.
OCD is more common in late adolescence into early adulthood. Your risk is also higher if you have family members with a history of OCD.
OCD may cause:
Conditions associated with OCD include:
If you have OCD, you may know that your thoughts and compulsions do not make sense, but you are unable to stop them.
OCD is usually diagnosed through a psychiatric assessment. OCD is diagnosed when obsessions and/or compulsions either:
Treatment reduces OCD thoughts and compulsions, but does not completely eliminate them. Common treatment approaches include a combination of medication and therapy.
Selective serotonin reuptake inhibitors (SSRIs) reduce OCD symptoms by affecting serotonin levels. Tricyclic antidepressants can also help treat symptoms.
Your doctor may try using other psychiatric medications to help control your condition.
Behavioral therapy addresses the actions associated with OCD. Cognitive-behavioral therapy (CBT) addresses both the thought processes and the actions associated with OCD.
Treatment of OCD is tailored to meet your particular needs.
Examples of therapies used to treat OCD include:
Electroconvulsive therapy (ECT) has had some success for those with OCD that is difficult to treat. However, the treatment is not for everyone. Be sure to discuss the benefits and harms of ECT treatment with your doctor.
There are no guidelines for preventing OCD because the cause is not known. However, early intervention may be helpful.
Anxiety and Depression Association of America
International OCD Foundation
Canadian Mental Health Association
Canadian Psychiatric Association
Obsessive compulsive disorder (OCD). EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T114503/Obsessive-comp...ive-disorder-OCD. Updated September 25, 2017. Accessed October 4, 2017.
Obsessive-compulsive disorder (OCD). National Institute of Mental Health, National Institutes of Health website. Available at: https://www.nimh.nih.gov/health/topics/obsessive-compulsive-disorder-ocd/index.shtml. Updated January 2016. Accessed October 4, 2017.
OCD risk higher when several variations in gene occur together. National Institute of Mental Health website. Available at: https://www.nimh.nih.gov/news/science-news/2008/ocd-risk-higher-when-several-variations-in-gene-occur-together.shtml. Accessed October 4, 2017.
4/16/2009 DynaMed Plus Systematic Literature Surveillance http://www.dynamed.com/topics/dmp~AN~T114503/Obsessive-comp...ive-disorder-OCD: Simpson HB, Foa EB, Liebowitz MR, et al. A randomized, controlled trial of cognitive-behavioral therapy for augmenting pharmacotherapy in obsessive-compulsive disorder. Am J Psychiatry. 2008;165(5):621-630.
7/15/2016 DynaMed Plus Systematic Literature Surveillance http://www.dynamed.com/topics/dmp~AN~T114503/Obsessive-comp...ive-disorder-OCD: Fontenelle LF, Coutinho ES, Lins-Martins NM, Fitzgerald PB, Fujiwara H, Yücel M. Electroconvulsive therapy for obsessive-compulsive disorder: a systematic review. J Clin Psychiatry. 2015;76(7):949-957.
Last reviewed September 2017 by EBSCO Medical Review Board Adrian Preda, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.