How to Stop Intrusive Thoughts: Understanding OCD and Breaking the Cycle
An unwanted thought suddenly appears in your mind.
Perhaps it's frightening, disturbing, completely out of character or centred on something you care deeply about. You don't want the thought to be there, so you try to get rid of it.
But instead of disappearing, it comes back.
You analyse it. You ask yourself why you had it. You try to reassure yourself that it doesn't mean anything. You may check something, avoid something, repeat something mentally or ask somebody else for reassurance.
For a little while, you feel better.
Then the doubt returns.
I'm Sharon Shinwell, a UK clinical hypnotherapist, counsellor and psychotherapist with more than 25 years' professional experience. One of the most important things to understand about intrusive thoughts is that constantly fighting with them can become part of the problem.
If intrusive thoughts are part of OCD, established treatment should always come first. In the UK, cognitive behavioural therapy (CBT) incorporating exposure and response prevention (ERP) is a recommended psychological treatment for OCD.
I've also created a five-part OCD Hypnosis Programme for people who want additional support alongside appropriate professional care. It focuses on intrusive thoughts, checking, reassurance and the need for certainty, with a separate night-time session. It is not a treatment for OCD or a replacement for CBT, ERP, medication or professional mental-health care.
What Are Intrusive Thoughts?
Intrusive thoughts are unwanted thoughts, images or urges that seem to appear automatically.
They can concern almost anything, but they often feel particularly disturbing because they conflict with the person's values or involve something they desperately don't want to happen.
The thought itself may last only a moment.
What happens afterwards can keep it alive.
You may start asking:
Why did I think that?
What if it means something about me?
How can I be certain I would never do that?
What if I've forgotten something?
What if the thought comes back?
The original thought has now become something to investigate, neutralise or prevent.
In OCD, obsessions can involve persistent unwanted thoughts, images or urges, while compulsions can include both visible behaviours and mental acts intended to reduce distress or prevent a feared outcome.
Does Having an Intrusive Thought Mean I Want It to Happen?
An intrusive thought is not the same thing as an intention.
This distinction is particularly important because intrusive thoughts can involve subjects that feel completely unacceptable to the person experiencing them.
The distress often comes precisely because the thought feels so inconsistent with who they believe themselves to be.
However, repeatedly trying to prove to yourself that a thought means nothing can itself become another form of reassurance.
The goal isn't to reach perfect certainty about every thought your mind produces.
It's to change the amount of importance you give it.
Why Do Intrusive Thoughts Keep Coming Back?
Imagine someone tells you:
Whatever you do, don't think about a pink elephant.
Your mind immediately has to represent the very thing you're supposed to avoid.
A similar problem can occur when you constantly monitor your mind for a particular unwanted thought.
Am I thinking about it?
Has it gone?
Why is it still there?
What if it comes back?
You're repeatedly directing attention towards it.
With OCD, the cycle can go further because the intrusive thought produces anxiety, which leads to something intended to make the anxiety disappear.
That response may bring temporary relief.
Unfortunately, temporary relief can teach you to repeat the response next time the thought appears.
Understanding the OCD Cycle
A simplified OCD cycle can look like this:
Intrusive thought → anxiety or doubt → compulsion or reassurance → temporary relief → intrusive thought returns.
For example:
You leave home and suddenly think:
What if I didn't lock the door?
You return and check.
You see that it's locked and feel relieved.
A few minutes later:
But did I definitely check it properly?
So you check again.
The checking reduced the anxiety temporarily, but it didn't teach you to tolerate the uncertainty. It taught you to check when uncertainty appeared.
OCD-UK describes compulsions as including not only obvious behaviours such as checking and washing, but also avoidance, reassurance seeking and mental rituals. The relief they provide tends to be temporary, which can perpetuate the cycle.
Intrusive Thoughts Don't Always Lead to Obvious Compulsions
When people hear the word OCD, they often picture repeated handwashing or checking whether a door is locked.
Compulsions can be much less visible.
You might repeatedly:
analyse a memory to establish exactly what happened;
mentally review a conversation;
search online for reassurance;
ask someone whether you've done something wrong;
check how you feel about a thought;
repeat a phrase mentally;
replace a frightening thought with a reassuring one;
avoid people, objects or situations that trigger particular thoughts.
This is important because someone may believe they have “only intrusive thoughts” while spending considerable time performing mental rituals or seeking reassurance.
How Do You Stop Intrusive Thoughts?
The phrase “how to stop intrusive thoughts” is understandable because unwanted thoughts can be extremely distressing.
But trying to make sure a particular thought never enters your mind again isn't usually a helpful target.
A more useful question is:
How can I respond differently when an intrusive thought appears?
Instead of immediately analysing, suppressing, neutralising or seeking reassurance about the thought, the aim is gradually to become better able to let it be present without performing the usual response.
That doesn't mean liking the thought.
It doesn't mean agreeing with it.
And it certainly doesn't mean wanting it to happen.
It means learning that the presence of a thought doesn't require you to do something about it.
Stop Trying to Find Complete Certainty
OCD frequently demands certainty where certainty isn't realistically available.
Did I definitely lock the door?
Can I be 100% certain I didn't offend somebody?
What if I accidentally hurt someone?
How do I know what that thought really means?
You answer the question.
Then another question appears.
That's the trap.
If the standard is absolute certainty, there will nearly always be another what if?
Recovery isn't about discovering the perfect answer that finally silences every doubt.
Part of established OCD treatment involves learning to experience obsessive thoughts without neutralising them through compulsive responses.
Be Careful With Reassurance
Reassurance can feel compassionate and sensible.
If somebody you trust tells you everything is fine, your anxiety falls.
But if reassurance has become a compulsion, the relief doesn't last.
You may soon need to ask again, phrase the question differently or find another person who can confirm the answer.
The same can happen with online searching.
One search becomes five.
Five become twenty.
You're no longer gathering useful information. You're trying to make uncertainty disappear.
NICE specifically recognises reassurance seeking and family involvement in compulsive behaviour as issues that may need addressing within OCD treatment.
How to Stop OCD Checking
Checking is another attempt to obtain certainty.
Of course, checking something once can be perfectly sensible.
The problem is repeated checking driven by doubt.
You check the door.
Then the cooker.
Then the door again because you were concentrating on the cooker when you checked it the first time.
Perhaps you take a photograph so you can reassure yourself later.
Soon the checking process itself becomes elaborate.
If you have OCD, reducing compulsive checking is something that can be addressed through appropriate CBT with ERP rather than simply forcing yourself to “be stronger”.
ERP involves facing feared thoughts or situations while resisting the usual neutralising or compulsive response, generally beginning with situations that are manageable and progressing appropriately.
What Is Exposure and Response Prevention?
Exposure and response prevention (ERP) is an established component of CBT for OCD.
In simple terms, exposure involves encountering a situation, thought or trigger that creates anxiety, while response prevention involves not carrying out the usual compulsion intended to make the anxiety or uncertainty disappear.
That doesn't mean throwing yourself immediately into your most frightening situation.
Treatment is usually approached in a planned way, and the NHS describes starting with situations that cause less anxiety before progressing towards more difficult ones.
This is one reason I wouldn't recommend attempting to design your own intensive exposure programme from a blog article.
If OCD is significantly affecting your life, seek appropriately qualified professional help.
Don't Turn Coping Techniques Into New Compulsions
This is particularly important with OCD.
A relaxation technique can be useful.
A breathing exercise can be useful.
Meditation can be useful.
But if you begin believing:
I must do this every time I have that thought or something bad might happen,
the coping technique itself risks becoming another ritual.
The purpose of relaxation or self-hypnosis shouldn't be to prove that a thought is harmless, neutralise it or guarantee that nothing bad will happen.
That's an important distinction.
What About Trying to Replace Negative Thoughts With Positive Ones?
For ordinary negative thinking, deliberately developing a more balanced perspective can sometimes be useful.
OCD requires more care.
If every disturbing thought is immediately replaced with a “safe” or positive thought, the replacement can become a mental neutralising ritual.
You may then start feeling that you must produce the correct thought to cancel the frightening one.
Again, the goal isn't to win an argument with every intrusive thought.
Sometimes the more helpful response is simply to recognise:
There's that thought again.
And resist doing the usual thing that follows it.
What If My Intrusive Thoughts Are Particularly Disturbing?
Some intrusive thoughts involve themes that people find deeply upsetting or shameful.
This can make it difficult to tell anyone what is happening.
People may fear that merely describing the thought will cause someone to judge them.
If intrusive thoughts are causing significant distress, speak with a suitably qualified healthcare or mental-health professional rather than struggling with them alone.
OCD is a recognised mental-health condition, and intrusive unwanted thoughts are a recognised feature of it.
Can Self-Hypnosis Help With OCD Intrusive Thoughts?
This is an area where I want to be particularly clear.
Hypnosis is not an established treatment for OCD.
NICE specifically states that there is not convincing evidence for a clinically important effect of hypnosis as a specific psychological treatment for OCD. Recommended treatment includes CBT incorporating ERP, with medication also used in some circumstances.
So I would never suggest replacing established OCD treatment with hypnosis.
Where I believe self-hypnosis can have a different role is as additional supportive material — for relaxation, practising a calmer relationship with uncertainty and reinforcing ideas that sit alongside appropriate professional care.
It should not be used to reassure you that a feared event won't happen or to “cancel out” an intrusive thought.
My Five-Part OCD Hypnosis Programme
I created my OCD Hypnosis Programme as a structured set of recordings rather than trying to address a complicated problem in one general session.
The programme includes separate sessions addressing different aspects of the experience, including intrusive thoughts, checking behaviours, reassurance and the need for certainty, together with a night-time session and a shorter reset recording.
A central idea running through the programme is learning to allow an unwanted thought or feeling to be present without immediately trying to make it disappear.
The recordings are designed as supportive self-hypnosis, not as treatment for OCD.
If you have OCD, particularly where symptoms are persistent or significantly affecting your everyday life, I recommend seeking appropriate professional help and using the programme only as an additional resource if it feels suitable for you.
When Should You Get Professional Help for Intrusive Thoughts?
Consider seeking professional help if intrusive thoughts, compulsions, checking, reassurance seeking or avoidance are taking up substantial amounts of your time, causing significant distress or interfering with work, relationships or everyday life.
The NHS advises that OCD is unlikely to improve without appropriate treatment and support. In England, adults can speak to their GP or self-refer to NHS Talking Therapies.
For reliable information about OCD and treatment, these are useful starting points:
Frequently Asked Questions About Intrusive Thoughts and OCD
How do I stop intrusive thoughts?
Trying to guarantee that an unwanted thought never appears again can keep your attention focused on it. If intrusive thoughts are related to OCD, treatment generally focuses instead on changing how you respond to obsessive thoughts and reducing the compulsions used to neutralise them. CBT incorporating ERP is a recommended treatment for OCD.
Are intrusive thoughts the same as OCD?
No. Having an intrusive thought doesn't by itself mean that you have OCD. OCD involves patterns of obsessions and/or compulsions that cause significant distress or impairment. A healthcare professional can assess whether your experiences are consistent with OCD.
Why do intrusive thoughts feel so real?
Thoughts can provoke strong emotional and physical responses, particularly when they involve something you fear deeply. Feeling distressed by a thought doesn't make the imagined event true or turn the thought into an intention.
Should I reassure someone with OCD?
Ordinary emotional support is valuable, but repeatedly answering the same reassurance-seeking question can become part of an OCD compulsion. NICE recommends addressing family or carer involvement in reassurance seeking sensitively within treatment.
Can hypnosis cure OCD?
No. I would not describe hypnosis as a cure or established treatment for OCD. NICE states that convincing evidence for a clinically important effect of hypnosis as a specific OCD treatment is lacking. CBT incorporating ERP is among the recommended treatments.
You Don't Have to Win an Argument With Every Thought
Intrusive thoughts can become enormously powerful when every appearance triggers a battle.
You analyse them.
You try to disprove them.
You check.
You seek reassurance.
You avoid things that might trigger them.
And gradually more and more of your life can become organised around preventing the thoughts or obtaining certainty.
A different approach isn't about deciding that the thoughts are pleasant or important.
It's about learning that a thought can be present without requiring a response.
If OCD is driving that cycle, appropriate professional treatment deserves to be at the centre of your approach.
And alongside that treatment, you can gradually practise giving intrusive thoughts less of your time, less of your attention and less power over what you do next.
Sharon ShinwellUK Clinical Hypnotherapist, Counsellor & Psychotherapist
