Obsessive-compulsive disorder

Obsessive-compulsive disorder (OCD) is a mental health condition characterised by recurrent, intrusive thoughts (obsessions) and compulsive behaviours (compulsions). People affected experience distressing thoughts that trigger anxiety or discomfort and cannot simply be suppressed. To reduce this inner tension, they repeatedly carry out certain actions, usually without lasting relief. In the long term, OCD can significantly interfere with everyday life, relationships and work or academic performance. Common compulsions may include excessive checking, cleaning, counting or repeating behaviours, while obsessions often centre around fears of contamination, harm or loss of control.

Typical symptoms

• Obsessions: persistent, intrusive thoughts, images or fears that repeatedly enter a person’s mind and cause significant anxiety or distress. Common obsessions may involve contamination, harm, uncertainty or fears of making mistakes.
• Compulsions: repetitive behaviours or mental rituals performed in an attempt to reduce anxiety or prevent something feared from happening. These may include excessive handwashing, repeated checking, counting, arranging objects or following strict routines and rules.

OCD is not simply a harmless habit or personality trait, but a serious mental health condition that can significantly interfere with everyday life, relationships and daily functioning. Although many people affected recognise that their thoughts or behaviours are excessive or irrational, they often feel unable to control or stop them.

Causes and contributing factors

The exact causes of OCD are not fully understood and are likely to involve a combination of genetic, neurobiological and environmental factors. Research suggests that altered activity in certain brain regions, as well as imbalances in neurotransmitters such as serotonin, may contribute to the development of the disorder.

Treatment options

The good news is that OCD is highly treatable. One of the most effective approaches is cognitive behavioural therapy (CBT), particularly exposure and response prevention (ERP). This method helps individuals gradually confront anxiety-provoking thoughts or situations while resisting compulsive behaviours, allowing anxiety to decrease naturally over time.

Medication, particularly selective serotonin reuptake inhibitors (SSRIs), may also help reduce symptoms and support the therapeutic process. In many cases, a combination of psychotherapy and medication can be especially effective.

With appropriate treatment and support, many people with OCD are able to better manage their symptoms, reduce anxiety and regain a greater sense of control in their daily lives.