OCD in children and young people: what it looks like and what helps

Obsessive compulsive disorder affects approximately one in a hundred children and young people in the UK, according to figures from the National Institute for Health and Care Excellence. It is one of the most distressing conditions a child can live with, and one of the most misrepresented. Popular culture has reduced OCD to a preference for tidiness. In clinical reality, OCD is a cycle of intrusive, unwanted thoughts (obsessions) and repetitive mental or physical acts performed to neutralise the distress those thoughts create (compulsions). The compulsions provide temporary relief, but they reinforce the belief that the thought was dangerous, and so the cycle continues and typically intensifies.

How OCD presents in children and young people

Children with OCD often present differently from adults. Common obsessional themes in childhood include fear of harm coming to a parent or sibling, fear of contamination or illness, scrupulosity (religious or moral obsessions), fear of saying or doing something wrong, and magical thinking: the belief that performing a ritual will prevent a catastrophic event. Compulsions in children are frequently reassurance-seeking rather than visible rituals. A child who asks 'are you sure you won't die?' fifty times a day, or who cannot go to bed without repeated checking that the door is locked, is engaging in compulsive behaviour. Because reassurance-seeking looks like anxiety rather than OCD, it is frequently missed.

OCD versus general anxiety: the key difference

The distinction between OCD and generalised anxiety matters because it changes the treatment approach. In generalised anxiety, the child is worried about real-world concerns: school, friendships, performance. In OCD, the content of the obsession is typically recognised by the child as excessive or unlikely, but the distress it generates feels overwhelming and uncontrollable. The compulsion is performed not because the child believes it will help but because not performing it generates unbearable anxiety. A useful clinical marker is ego-dystonia: the child experiences their OCD thoughts as alien, unwanted, and inconsistent with who they are. This is distressing in a way that is qualitatively different from ordinary worry.

Why OCD is frequently diagnosed late

The average time from onset of OCD to diagnosis is approximately nine years, according to research published in the British Journal of Psychiatry. Several factors drive this delay. Children with OCD are often ashamed of the content of their obsessions and conceal them from parents and teachers. Reassurance-seeking can be mistaken for clinginess or separation anxiety. Rituals performed privately (counting, mental reviewing, silent repetition) are invisible to observers. Parents who observe rituals may attribute them to quirks of personality or a 'phase'. School refusal, which can result from OCD triggered by school-related obsessions, is sometimes addressed without exploring the underlying mechanism. A thorough clinical assessment is the only reliable way to identify OCD in a child who has learned to hide it.

What the evidence says about treatment

Cognitive behavioural therapy incorporating exposure and response prevention (CBT with ERP) is the NICE-recommended, evidence-based treatment for OCD in children and young people. ERP involves the child deliberately entering situations that trigger their obsessions while resisting the urge to perform the compulsion. Over repeated exposures, the brain learns that the feared consequence does not occur, and that the anxiety reduces on its own without the compulsion. This is a demanding process and requires both clinical skill and the child's active participation. Results are substantial: controlled trials consistently show that 60 to 80 per cent of children and young people with OCD achieve significant symptom reduction through ERP. For moderate to severe cases, CBT with ERP is often combined with selective serotonin reuptake inhibitor medication.

What does not help, and may make things worse

Reassurance is the most common way parents inadvertently maintain OCD. When a parent answers the same anxious question for the twelfth time, they are participating in the compulsive cycle. The child experiences momentary relief, the relief reinforces the compulsion, and the next episode of anxiety will be stronger. Accommodation, adapting the family environment to prevent the child encountering triggers, has the same effect. A key part of effective OCD treatment is therefore working with parents to understand their role in the maintenance cycle and to find ways of withdrawing reassurance without abandoning the child emotionally. This is harder than it sounds and requires careful guidance from a clinician experienced in OCD.

When to seek assessment

If a child is spending more than an hour a day on obsessions or compulsions, or if OCD-related behaviour is causing distress, disrupting school, or affecting family relationships, assessment is appropriate. There is no benefit in waiting. OCD that is untreated tends to escalate, and the longer compulsive patterns are practised, the more entrenched they become. A good clinical assessment will distinguish OCD from other anxiety presentations, identify any co-occurring conditions such as ADHD or autism spectrum condition, and produce a formulation that guides a treatment plan. If you would like to understand whether Blip can help, you can enquire below.