Obsessions are thought, images and impulses that occur repeatedly. Persons having obsessive compulsive disorder do not want to have these thoughts because these thoughts disturbing them. Ordinarily, individuals having obsessive compulsive disorder recognized that these thoughts are senseless. The common symptoms of OCD is avoid contamination such as washing hand excessively, cleaning household, etc. Now a days, the use of modern technology such as online video games, selfies and social media is increased. The over use of this technology can lead to obsessive compulsive disorder in young generations. In OCD there is Serotonin deficiency in synapse this low levels of serotonin can cause OCD symptoms. Antidepressants (SSRI's) is used to treat OCD because it increased the serotonin level in synapse The drugs include: Clomipramine (Anafranil), Fluoxetine (Prozac), Fluvoxamine, Sertraline (Zoloft) and Paroxetine (Paxil, Pexeva).The psychological treatment of OCD is very effective when it takes the form of cognitivebehavioral therapy (CBT) and lot of research is required for the same before it affects large population of the world and will be on the top of the list of Global Burden of Diseases.