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Related Disorders

Obsessive-Compulsive Disorder (OCD) is thought to be one of the most common mental illnesses in the UK, with an estimated 1.2% of the population suffering from the condition.

For a long time researchers believed that a number of conditions that exist with OCD are thought to be biologically linked to the disorder as part of an OCD-spectrum of disorders.
These included Body Dysmorphic Disorder, Compulsive Skin Picking, Tourette Syndrome and Trichotillomania.

However, it is now felt that Body Dysmorphic Disorder is perhaps the closest linked of all these disorders to OCD, with the others being different conditions in their own right, although  the common factor in all of these conditions is that they do all involve, to some degree, the presence of repetitive thoughts, behaviours or urges. 

Many people with these other conditions will also be comorbid and display OCD type symptoms, and be diagnosed with OCD which is why they are still considered to be related disorders. When two diagnoses occur in the same individual they are referred to as ‘comorbid’.

All of these disorders often go unrecognised and undiagnosed by GPs because the symptoms mimic other disorders, such as social phobia, agoraphobia, panic disorder and other secondary conditions from the Generalised Anxiety Disorder (GAD) range, all of which can sometimes lead to depression.

There are also a number of other disorders which often affect people with OCD. Although these conditions are not in the OCD spectrum of disorders, they run alongside the OCD and are often a consequence of OCD. These include Depression, Emetophobia, Panic Attacks and Self-Harm.

In this section of the website we take a look at these related disorders  We have also provided basic information on other conditions, which although not part of the OCD spectrum, we are often asked about.

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