The term Obsessive-compulsive disorder also called as OCD it is a type of anxiety disorder. This disorder is the experience of prolonged, excessive worry about circumstances in their life. It is characterized by distressing, repetitive thoughts, impulses or images that are intense, frightening, absurd, or unusual. It′s sometimes difficult to diagnose OCD because symptoms can be similar to those of obsessive-compulsive personality disorder, anxiety disorders, depression, schizophrenia or other mental illnesses. Diagnose of OCD include Physical exam , Lab tests like complete blood count (CBC) , Psychological evaluation about your thoughts, feelings, symptoms and behaviour patterns.