OCD

What is OCD?

Obsessive-compulsive disorder (OCD) is a mental health condition in which intrusive, unwanted thoughts trigger intense anxiety, relieved temporarily through repeated behaviours or mental rituals. The pattern can take up hours of a day and affect work, relationships and everyday decisions, even when someone knows the thoughts do not reflect what they want.

The cycle has two parts. Obsessions are thoughts, images or urges that arrive uninvited and feel hard to dismiss, often about harm, contamination, doubt or something going badly wrong. Compulsions are the actions, checks or mental routines a person carries out to try to reduce the anxiety those thoughts create, or to prevent a feared outcome. The relief compulsions bring is usually short-lived, so the cycle repeats, and over time it can take up more of the day than anyone would choose.

OCD is not the same as simply being cautious or liking things a certain way. It sits on a spectrum of severity, and for some people it stays manageable for long periods before flaring under stress, while for others it becomes a near-constant background process that shapes daily choices.

Symptoms of OCD

Symptoms vary between people, but common patterns include repeated checking of locks, appliances or messages, excessive washing or cleaning, counting or arranging objects until they feel right, and mental rituals such as silently repeating phrases or reviewing past events for reassurance. Some people experience obsessions without visible compulsions, working through rituals entirely in their head, which can make the condition harder for others to notice.

Alongside the thoughts and behaviours, many people describe physical tension, restlessness or a racing heart when they try to resist a compulsion, and a low mood that builds as the condition takes up more time and energy. Avoidance is common too: steering clear of situations, objects or conversations that might trigger an obsession, which can quietly shrink someone’s world without them fully realising it.

Common themes in OCD

OCD themes are not fixed and can shift over months or years, but several patterns come up often. Contamination fears centre on germs, illness or dirt, and drive washing or cleaning rituals. Checking themes involve doubt about whether something was done safely, such as locking a door or sending an email correctly. Symmetry and order themes create a need for things to feel exactly right, sometimes with counting or arranging rituals attached.

Other people experience unwanted intrusive thoughts about causing harm, or thoughts that clash sharply with their values, including sexual or aggressive images that cause deep distress precisely because they are so unwelcome. Relationship-focused doubts are also common, where someone repeatedly questions their feelings towards a partner or seeks reassurance that everything is fine. None of these themes says anything about a person’s character or intentions. They are a feature of how OCD attaches itself to whatever matters most.

Moral and religious doubt is another common thread, sometimes called scrupulosity, where someone repeatedly seeks certainty that they have not done or thought something wrong, checking their own conscience against a standard that never quite feels satisfied.

How therapy can help

Cognitive behavioural therapy (CBT) that includes exposure and response prevention (ERP) is the treatment NICE recommends for OCD. ERP works by gradually and safely facing the situations or thoughts that trigger anxiety, while resisting the urge to carry out the usual compulsion or ritual. Over repeated practice, many people find the anxiety response softens and the thoughts lose some of their grip, because the brain learns that the feared outcome does not follow and that the anxiety itself settles without a ritual to force it down.

For some people, acceptance and commitment therapy (ACT) is used alongside ERP, helping build a different relationship with intrusive thoughts rather than treating each one as something to argue with or neutralise. Therapy does not aim to remove intrusive thoughts altogether, since everyone has unwanted thoughts from time to time. The aim is to change how much power those thoughts hold and how much of the day they take up.

Our approach

Sessions begin with time to understand how OCD shows up for you specifically: the themes involved, the compulsions that have built up around them, and how the condition affects your work, relationships and day-to-day routine. From there, therapy is built around your own hierarchy of triggers, starting with situations that feel manageable and building towards harder ones at a pace that is agreed together rather than imposed.

Every session is delivered online with an adult client, using secure video calling, which fits around work and family life without travel. Online CBT has been shown to produce outcomes broadly in line with in-person therapy, and for many people the familiarity of their own space makes early ERP practice easier to start.

What does OCD therapy involve?

A typical course starts with an assessment to map out obsessions, compulsions, avoidance patterns and the beliefs that keep the cycle going. From this, therapist and client build a shared formulation and a practical plan, usually working through a graded hierarchy of exposure tasks over weekly sessions. Practice between sessions matters as much as the sessions themselves, since ERP works through repeated, real-world experience rather than discussion alone.

Progress is reviewed regularly, and the plan adjusts as things move forward or as new themes emerge. Some people notice change within a number of weeks, others need longer, and the pace depends on how entrenched the compulsions are and how much support is available day to day.

When to seek help

It is worth seeking support when intrusive thoughts or rituals are taking up a significant part of the day, when avoidance is starting to limit work, study or relationships, or when reassurance-seeking from other people has become a daily need. OCD can also worsen gradually, so a pattern that felt minor a year ago may now be harder to manage alone.

If thoughts turn towards harming yourself or someone else, or you feel unable to keep yourself safe, contact your GP, call NHS 111, or speak to the Samaritans on 116 123. In an emergency, go to A&E or call 999. Outside of a crisis, a conversation with your GP is a reasonable place to start, alongside reaching out directly for therapy.