Abstract
The Diagnostic and Statistical Manual of mental disorders (DSM 4) defines obsessive compulsive disorder (OCD) as compulsive or repetitive behaviors of obsessions that a person feels driven to perform. These acts and behaviors are aimed at preventing or reducing distress but are not connected in a realistic way. OCD is a pathological hypothesis of dysfunctions occurring within the cortico-striato-thalamo-cortical loops. It is one of the most prevalent and disabling psychiatric disorder associated with decreased life quality (American Psychiatric Association). This article will provide a brief study on the comparison of deep brain stimulation and transcranial magnetic stimulation in the treatment of refractory obsessive compulsive disorder besides other pharmacological and non-pharmacological treatments.
 Keywords: OCD, Deep brain stimulation, Transcranial magnetic stimulation
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