Abstract
Obsessive-Compulsive Disorder (OCD) is characterized by obsessions - recurrent or unwanted thoughts or impulses - and/or compulsions - stereotyped or ritualized behaviors. Although there is no predominance between sexes, ovarian hormones appear to act as modulators in the disorder. The pathophysiology of OCD is still not entirely clear; however, the role of the serotonergic system is evid…