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Common Concerns5 min read

Obsessive-Compulsive Disorder (OCD)

OCD involves persistent, unwanted thoughts and repetitive behaviours. Learn how it works, what causes it, and the treatments that really help.

Last reviewed February 22, 2026By Seeds of New Beginnings Team

What Is OCD?

Obsessive-Compulsive Disorder (OCD) is a common, chronic mental health condition characterised by two core features:

  • Obsessions — recurring, unwanted, and intrusive thoughts, images, or urges that cause significant distress or anxiety
  • Compulsions — repetitive behaviours or mental acts performed in response to obsessions, usually aimed at reducing distress or preventing a feared outcome

OCD is often misunderstood or trivialised ("I'm so OCD about my desk"). In reality, OCD can be severely disabling, consuming hours of a person's day and significantly affecting relationships, work, and quality of life.

How the OCD Cycle Works

OCD operates as a self-reinforcing cycle:

  1. An intrusive thought or image appears (obsession)
  2. The thought causes anxiety, distress, or a sense of danger
  3. A compulsive act is performed to relieve the distress or prevent the feared outcome
  4. Relief is temporary — the obsession returns, often more intensely
  5. The compulsion is repeated...

Compulsions provide short-term relief but maintain and strengthen OCD over time. The feared catastrophe never occurs, but rather than learning the compulsion was unnecessary, the brain interprets the "safe" outcome as proof that the compulsion worked.

Common Obsessive Themes

OCD can take many different forms. Common themes include:

  • Contamination — fear of germs, illness, or spreading harm to others through contact
  • Checking — fear of causing harm through carelessness (leaving a door unlocked, gas on, causing an accident)
  • Symmetry and order — discomfort when things are not arranged "just right," a need for exactness
  • Harm — intrusive thoughts about hurting oneself or others (despite having no desire to do so)
  • Unwanted sexual thoughts — disturbing sexual images or impulses that are entirely against the person's values
  • Religious and moral scrupulosity — excessive concern about sin, blasphemy, or moral purity
  • Relationship OCD — constant doubt about a relationship, one's partner, or one's own feelings

Common Compulsions

  • Washing hands or cleaning excessively
  • Checking doors, locks, appliances, or switches repeatedly
  • Counting, arranging, or ordering objects
  • Seeking reassurance from others repeatedly
  • Mental reviewing (going over events in one's mind to "ensure" no harm was done)
  • Praying or repeating phrases or words
  • Avoiding situations, people, or objects that trigger obsessions

Who Gets OCD?

OCD affects approximately 1–3% of the population. It often begins in childhood, adolescence, or early adulthood. It affects people of all genders, cultures, and backgrounds. OCD tends to be chronic, though its intensity can fluctuate.

Causes

No single cause has been identified. Research suggests OCD involves:

  • Genetics — OCD runs in families; having a relative with OCD increases risk
  • Brain circuitry — differences in circuits linking the front of the brain (orbitofrontal cortex) with deeper structures (basal ganglia) appear to play a role
  • Stress and life events — stressful events can trigger or worsen OCD in those who are vulnerable
  • Learned behaviours — compulsive behaviours are reinforced by the temporary relief they provide

Treatment

OCD responds well to treatment. The two most effective treatments are:

Cognitive Behavioural Therapy (CBT) with Exposure and Response Prevention (ERP)

ERP is considered the gold standard treatment for OCD. It involves:

  • Gradually and deliberately confronting feared situations or triggers (exposure)
  • Resisting the urge to carry out compulsions (response prevention)

Over time, the brain learns that the feared consequences do not occur, and anxiety gradually reduces without the compulsion. ERP is challenging but highly effective, with the majority of people experiencing significant improvement.

Medication

Selective serotonin reuptake inhibitors (SSRIs) are the most effective medications for OCD. Higher doses are typically needed compared to depression treatment, and it may take several months to see full benefit. Common SSRIs used include fluoxetine, fluvoxamine, sertraline, and paroxetine. SSRIs are often most effective when combined with ERP therapy.

What Does Not Help

Unfortunately, reassurance-seeking — whether from others or through checking — maintains OCD. Attempting to suppress or push away obsessive thoughts also tends to make them worse (the "white bear" effect). Treatment focuses on changing your relationship with the thoughts, not eliminating them.

Self-Management Strategies

While professional treatment is recommended for OCD, the following may be helpful alongside it:

  • Psychoeducation — understanding the OCD cycle reduces shame and helps you respond more strategically
  • Delaying compulsions — even a small delay in carrying out a compulsion can weaken the cycle
  • Mindful observation — noticing thoughts as "just thoughts" without treating them as facts or commands
  • Regular physical activity — helps manage anxiety generally
  • Limiting reassurance-seeking — asking others to "reassure" you tends to reinforce OCD

Getting Help

If OCD is taking up significant time, causing distress, or interfering with your life, professional support is available. Speak to your doctor about a referral to a therapist trained in ERP, or contact us at Seeds of New Beginnings to discuss your options.

Recovery from OCD is absolutely possible. Most people who engage with appropriate treatment see meaningful improvement in their quality of life.

Sources & References

Written by Seeds of New Beginnings Team

Last reviewed: February 22, 2026

Important

This information is provided for educational purposes and supports, but does not replace, professional mental health care. If you are experiencing a mental health crisis, please contact a crisis service or call 911.