Obsessive-compulsive disorder (OCD) is a psychiatric anxiety disorder where a person has recurrent and unwanted ideas or impulses (called obsessions) and an urge or compulsion to do something to relieve the discomfort caused by the obsession. The obsessive thoughts range from the idea of losing control, to themes surrounding religion or keeping things or parts of one's body clean all the time. Compulsions are behaviors that help reduce the anxiety surrounding the obsessions. Most people who have OCD have both obsessions and compulsions. The thoughts and behaviors a person with OCD has are senseless, repetitive, distressing, and sometimes harmful, but they are also difficult to overcome.
Many people still carry the misperception that they somehow caused themselves to have these compulsive behaviours and obsessive thoughts. Nothing could be further from the truth. OCD is likely the cause of a number of intertwined and complex factors which include genetics, biology, personality development, and how a person learns to react to the environment around them. What scientists today do know is that it is not a sign of a character flaw or a personal weakness. OCD is a serious mental disorder, which is more treatable than ever. Without the appropriate treatment, it affects a person's ability to function in every day activities, one's work, one's family, and one's social life.
The phrase "obsessive-compulsive" has worked its way into the common English language also and is often used in an offhand manner to describe someone who is meticulous or absorbed in a cause. Such casual references should not be confused with obsessive-compulsive disorder. It is very important to distinguish OCD from other types of anxiety, including the routine tension and stress that appear throughout life. Although these signs are often present in OCD, a person who shows signs of infatuation or fixation with a subject or object, or displays traits such as perfectionism, does not necessarily have OCD, a specific and well-defined condition.
To be diagnosed with obsessive-compulsive disorder, one must have either obsessions or compulsions alone, or obsessions and compulsions, according to the DSM-IV-TR diagnostic criteria. The Quick Reference to the diagnostic criteria from DSM-IV-TR (2000) describes these obsessions and compulsions:
Obsessions are defined by:
Compulsions are defined by:
In addition to these criteria, at some point during the course of the disorder, the sufferer must realise that his or her obsessions or compulsions are unreasonable or excessive. Moreover, the obsessions or compulsions must be time-consuming (taking up more than one hour per day), cause distress, or cause impairment in social, occupational, or school functioning. OCD often causes feelings similar to those of depression.
For example, if people are obsessed with germs or dirt, they may develop a compulsion to wash their hands over and over again. If they develop an obsession with intruders, they may lock and relock their doors many times before going to bed. Being afraid of social embarrassment may prompt people with OCD to comb their hair compulsively in front of a mirror-sometimes they get “caught” in the mirror and can’t move away from it. Performing such rituals is not pleasurable. At best, it produces temporary relief from the anxiety created by obsessive thoughts.
Other common rituals are a need to repeatedly check things, touch things (especially in a particular sequence), or count things. Some common obsessions include having frequent thoughts of violence and harming loved ones, persistently thinking about performing sexual acts the person dislikes, or having thoughts that are prohibited by religious beliefs. People with OCD may also be preoccupied with order and symmetry, have difficulty throwing things out (so they accumulate), or hoard unneeded items.
Healthy people also have rituals, such as checking to see if the stove is off several times before leaving the house. The difference is that people with OCD perform their rituals even though doing so interferes with daily life and they find the repetition distressing. Although most adults with OCD recognise that what they are doing is senseless, some adults and most children may not realise that their behaviour is out of the ordinary.