About OCD

OCD-related conditions

Some conditions are closely related to OCD, while others share features that can make them look similar. Their differences become clearer when we look beyond the visible behaviour.

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How these conditions relate to OCD

OCD-related conditions have their own diagnostic features but share some characteristics with OCD. These can include repetitive behaviours, avoidance, checking, strong urges or the sense of being trapped in a recurring pattern.

Some of these conditions are grouped with OCD in international diagnostic systems. Others are classified elsewhere but can still resemble OCD or occur alongside it.

Looking beyond the visible behaviour

The same visible behaviour can serve different purposes for different people. What triggers it, what the person experiences beforehand and what the behaviour is meant to achieve all help place it in the wider pattern.

In OCD, behaviours and mental strategies often arise in response to intrusive thoughts, doubt or distress. They can function as attempts to obtain relief, certainty, safety or control. In other conditions, repetition or avoidance may be more closely connected to bodily urges, sensory experiences, self-perception or fear of a particular physical reaction.

Different patterns can occur together

A person can experience OCD alongside another condition. When symptoms overlap, the function and impact of each pattern tell us more than the visible behaviour alone.