Obsessive-compulsive disorder risk factors
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Abhishek Reddy
Overview
Risk factors for obsessive compulsive disorder include family history and stressful life events.
Risk Factors
Risk factors may include:
- Age; OCD tends to develop in late adolescence or early adulthood, however, it can begin as early as preschool age and as late as age 40.
- Genetic Factors; Research suggests that genes may play a role in the development of OCD in some cases. The condition tends to run in families. A person who has OCD has a 25% chance of having a blood relative who has it. One study found that children inherit OCD symptoms in 45%-60% of cases, while adults inherit the symptoms in 27%-47% of cases.
- Presence of other mental or neurologic conditions- OCD often occurs in people who have other anxiety disorders, depression, Tourette's syndrome, attention-deficit hyperactivity disorder (ADHD), substance abuse, eating disorders, and certain personality disorders.
- Streptococcal infection; PANDAS, or pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections, is a term that refers to a group of children who have developed OCD and/or a tic disorder, after infection with streptococcus. Researchers are studying what causes this and have theories about antibodies in the body which may also interact with the brain.
- 4. Stress- OCD symptoms often occur during stress from major life changes, such as loss of a loved one, divorce, relationship difficulties, problems in school, or abuse.
- 5. Pregnancy and Postpartum- OCD symptoms may worsen during and immediately after pregnancy. In this case, fluctuating hormones can trigger symptoms. Postpartum OCD is characterized by disturbing thoughts and compulsions regarding the baby’s well-being.
References
Carson RC. Abnormal Psychology and Modern Life . 11th ed. Allyn and Bacon; 2000.
Moretti G, Pasquini M, Mandarelli G, et al. What every psychiatrist should know about PANDAS: a review. Clin Pract Epidemol Ment Health. 2008 May 21;4:13.
van Groothest DS, Cath DC, Beekman AT, Boomsma DI. Twin studies on OCD: A review. Twin Res Hum Genet. 2005;8:450-458.