OCD

OCD, obsessive-compulsive disorder, involves unwanted intrusive thoughts, images or urges that cause significant distress, followed by repetitive behaviours or mental acts carried out to relieve that distress. It is not about liking things clean or organised. A clinical psychologist trained in treating OCD can help you understand the cycle and gradually break it.

What OCD is and how it shows up

OCD has two parts. Obsessions are intrusive thoughts, images or urges that arrive uninvited and cause anxiety, commonly involving contamination, harm, relationships, sexuality, religion or a need for symmetry. Compulsions are the repetitive behaviours or mental acts, washing, checking, counting, reviewing, seeking reassurance, used to try to reduce that anxiety. The relief compulsions bring is temporary, and the cycle tends to repeat, often more strongly the next time.

A defining feature of OCD is that most people recognise their thoughts or rituals do not make logical sense, but feel unable to stop the cycle anyway. That insight often adds to the distress rather than easing it. OCD can attach itself to almost any theme. Contamination OCD centres on fears about germs or illness. Harm OCD involves intrusive thoughts about causing harm to yourself or others. Relationship OCD involves persistent doubt about a partner or relationship. Some people experience what is sometimes called “Pure O”, where compulsions are largely mental rather than visible, though careful assessment usually finds mental rituals present even when outward behaviour looks minimal.

Avoidance is often part of the picture too. Someone with contamination fears might stop using public transport, and someone with harm-related obsessions might avoid being alone with a particular person. As avoidance grows, life can narrow considerably, and OCD can end up dictating decisions about work, relationships and daily routine long before anyone else notices what is going on underneath.

When to seek help

If intrusive thoughts are causing significant distress, if you find yourself carrying out rituals or avoiding situations to manage anxiety, or if OCD is taking up time and energy you want back, it is worth speaking to a specialist. OCD often thrives on secrecy, and many people wait a long time before seeking help because the content of their thoughts feels too shameful to share. You do not need a formal diagnosis or a particular level of severity before getting in touch.

How a clinical psychologist assesses and treats OCD

Assessment involves mapping your specific obsessions and compulsions, what triggers them, how much time they take up each day, and the meaning you attach to the intrusive thoughts themselves, since that meaning is usually what keeps the cycle going. NICE recommends CBT with exposure and response prevention (ERP) as the first-line treatment for OCD, and it remains the approach with the strongest evidence base.

ERP works by gradually and deliberately facing the situations, objects or thoughts that trigger obsessions while resisting the usual compulsive response, so the anxiety has a chance to reduce on its own rather than being managed away by a ritual. This breaks the link between obsession and compulsion that keeps OCD self-sustaining. Where shame or self-criticism is getting in the way of engaging with exposure work, a psychologist may also draw on acceptance and commitment therapy (ACT) alongside CBT, helping you build willingness to sit with discomfort rather than acting on it.

Generic counselling is not considered sufficient for OCD and can occasionally reinforce the cycle, for example through repeated reassurance-giving. This is why working with a psychologist who has specific OCD experience matters more here than in some other presentations.

A typical course starts with detailed assessment and psychoeducation, so you understand why compulsions maintain OCD rather than resolve it, before moving into structured exposure work. Exposures are built into a hierarchy, ranked from mildly to significantly anxiety-provoking, and you work through them gradually rather than starting with the hardest item on the list. As symptoms reduce, sessions shift towards relapse prevention, recognising early warning signs and having a plan ready, since OCD can resurface during periods of stress even after successful treatment.

What online sessions look like

Sessions run over secure video call, usually fifty minutes. For OCD specifically, online delivery has a practical advantage: exposure exercises can be carried out in the settings where your OCD actually shows up, your kitchen, your front door, your phone, rather than rehearsed in a clinic room and then transferred to real life afterwards. Between sessions you will usually practise agreed exposure tasks, and your psychologist will review how they went and adjust the plan the following week.

What if my OCD themes feel too difficult to say out loud

This is a common worry, and it is one of the biggest reasons people delay seeking help. OCD frequently latches onto whatever matters most to a person or feels most at odds with their values, which is precisely why the content of the thoughts can feel so shameful. A psychologist experienced in OCD will have heard a wide range of themes before and will not react with judgement. Naming the specific content of your obsessions, even the parts that feel hardest to say, is usually part of what allows the work to move forward.

OCD and life in Islington and north London

Islington’s N1 postcodes take in Upper Street, Angel, Highbury, Canonbury and Barnsbury, with the Victoria and Northern lines running through the area. OCD does not pause for a working day, and rituals around checking, contamination or reassurance can be just as present on a commute along the Victoria or Northern line as they are at home. Online sessions mean the practical work of therapy can happen in the actual places these patterns show up, rather than only being discussed in the abstract.

Getting started

Sessions are online, so there is nothing to wait for before starting. Our get started page is the quickest way in, and we will match you with a psychologist experienced in treating OCD.