Most people are diagnosed by about age 19, typically with an earlier age of onset in boys than in girls, but onset after age 35 does happen.
For statistics on OCD in adults, please see the NIMH Obsessive Compulsive Disorder Among Adults webpage.
Ongoing research continues to explore the connection between genetics and OCD and may help improve OCD diagnosis and treatment.
Imaging studies have shown differences in the frontal cortex and subcortical structures of the brain in patients with OCD.
Although most adults with OCD recognize that what they are doing doesn’t make sense, some adults and most children may not realize that their behavior is out of the ordinary.
Parents or teachers typically recognize OCD symptoms in children.
It is important to consider these other disorders when making decisions about treatment.In some cases, children may develop OCD or OCD symptoms following a streptococcal infection—this is called Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections (PANDAS).For more information, please read this fact sheet on PANDAS.For the most up-to-date information on medications, side effects, and warnings, visit the FDA website .Psychotherapy can be an effective treatment for adults and children with OCD.