OCD has two main components: obsessions and compulsions
Obsessions are reoccurring and persistent thoughts
Obsessive thoughts are not based on reality, for example, a sufferer may believe that germs and bacteria exist everywhere, which cause feelings of anxiety
Compulsions are repetitive behaviours
The compulsions are physical urges to perform actions, for example repetitive hand-washing, in order to reduce the feelings of anxiety, caused by the obsessive thoughts
70% of OCD sufferers experience both obsessions and compulsions combined
20% of OCD sufferers experience just obsessions alone and 10% experience just compulsions alone
OCD can be triggered by stressful life events such as bereavement or divorce
The behavioural component of OCD centres on the compulsive behaviour and for sufferers of OCD, compulsions have two properties
Compulsions are repetitive in nature and sufferers will often feel compelled to repeat a behaviour, for example, repetitive hand washing
Compulsions are used to manage or reduce anxiety, for example, the excessive handwashing is caused by an excessive fear of germs and bacteria and is therefore a direct response to the obsession
The emotional characteristics of OCD are mainly characterised by anxiety which is caused by the obsessions, however some sufferers of OCD also experience depression
Obsessions are persistent and/or forbidden thoughts and ideas, which cause high levels of anxiety in OCD sufferers
Furthermore, OCD can often lead to depression, as the anxiety experienced can often result in a low mood and loss of pleasure in everyday activities, because everyday activities are interrupted by obsessive thoughts and repetitive compulsions
Cognitive characteristics - obsessive thoughts
Obsessive thoughts are the main cognitive feature of OCD
Examples of reoccurring thoughts include fears of contamination (dirt or germs), fear of safety (by leaving doors or windows open), religious fears (being immoral), perfectionism (fear of not being the best)
For sufferers of OCD, the fears occur over and over again
Some sufferers of OCD adopt cognitive strategies to deal with their obsessions
For example, sufferers with religious obsessions may pray over and over, to reduce their feelings of being immoral
Furthermore, sufferers of OCD know that their obsessions and compulsions are immoral and experience selective attention directed towards the anxiety-generating stimuli