Is OCD heritable?

“… it seems that early onset OCD, meaning people who have an onset of OCD at an early age are more likely to have family members with OCD than people who get OCD let’s say in their late teens or twenties …”

Helen Blair Simpson, M.D., Ph.D.
2010 NARSAD Independent Investigator Grantee
Professor of Clinical Psychiatry
Director of the Anxiety Disorders Clinic
New York State Psychiatric Institute