Fortunately, through research supported by the National Institute of Mental
Health (NIMH), effective treatments have been developed to help people with
obsessive compulsive disorder.
How Common Is OCD?
- About 2% of the U.S. population has OCD in a given year.
- OCD typically begins during adolescence or early childhood; at least
one-third of the cases of adult OCD began in childhood.
- OCD affects men and women equally.
- OCD cost the U.S. $8.4 billion in 1990 in social and economic losses,
nearly 6% of the total mental health bill of $148 billion.
What Causes OCD?
There is growing evidence that
obsessive compulsive disorder has a neurobiological basis. OCD is no
longer attributed to family problems or to attitudes learned in childhood - for
example, an inordinate emphasis on cleanliness, or a belief that certain
thoughts are dangerous or unacceptable. Instead, the search for causes now
focuses on the interaction of neurobiological factors and environmental
influences. Brain imaging studies using a technique called positron emission
tomography (PET) have compared people with and without OCD. Those with OCD have
patterns of brain activity that differ from people with other mental illnesses
or people with no mental illness at all. In addition, PET scans show that in
patients with obsessive compulsive
disorder, both behavioral therapy and medication produce changes in
the caudate nucleus, a part of the brain. This is graphic evidence that both
psychotherapy and medication affect the brain.
What Treatments Are Available for OCD?
Treatments for obsessive
compulsive disorder
have been developed through research supported by the NIMH
and other research institutions. These treatments, which combine medications
and behavioral therapy (a specific type of psychotherapy), are often effective.
Several medications have been proven effective in helping people with OCD:
clomipramine, fluoxetine, fluvoxamine and paroxetine. If one drug is not
effective, others should be tried. A number of other medications are currently
being studied.
A type of behavioral therapy known as “exposure and response prevention” is
very useful for treating OCD. In this approach, a person is deliberately and
voluntarily exposed to whatever triggers the obsessive thoughts and then, is
taught techniques to avoid performing the compulsive rituals and to deal with
the anxiety.
Can People With OCD Also Have Other Physical or Emotional Illnesses?
OCD is sometimes accompanied by depression, eating disorders, substance abuse,
attention deficit hyperactivity disorder, or other anxiety disorders. When a
person also has other disorders, OCD is often more difficult to diagnose and
treat. Symptoms of OCD can also coexist and may even be part of a spectrum of
neurological disorders, such as Tourette’s syndrome. Appropriate diagnosis and
treatment of other disorders are important to successful treatment of OCD.