Checking OCD: Did I Turn Off the Hob, Did I Lock the Door?

What is checking OCD? Going back home again and again, checking the hob and the door over and over, and the ways out of this cycle are covered here.

Eight in the morning. The school or work shuttle is waiting outside, or you need to get to the bus stop. You pull the door shut, go down the stairs, and just as you reach the front door of the building the thought arrives: "Did I turn off the hob?" You seem to remember turning it off, but that is not enough. You go back up, look into the kitchen, and touch the knobs one by one. You lock the door again and pull the handle three times. This time it is "What if the key didn't turn all the way?" that will not let you rest. For many people living with this cycle, every day begins with a small battle like this, repeated each morning. In this article we explain what checking OCD is, how it differs from ordinary absent-mindedness, why doubt grows rather than shrinks the more you check, and how this cycle is loosened in therapy.

What Is Checking OCD?

Checking OCD is the need to check something again and again because of a doubt that something bad will happen, or that someone will be harmed through your negligence. It is one of the most common forms of obsessive compulsive disorder. A doubt appears in the mind ("What if the door was left open?"), this doubt creates intense unease, and the person checks in order to quell that unease.

Everyone checks something twice now and then. Making sure you have turned off the gas before setting off on a long journey is common sense. With obsessive checking, however, the check is not done once and finished; the person cannot trust even what they have just seen with their own eyes. The number of checks, the time they take and the distress they cause are what set them apart from ordinary attentiveness.

The things that are checked are most often:

• The hob, the oven, the gas valve, the combi boiler
• Doors, windows, the car lock
• The iron, the hairdryer, the phone charger in the socket
• Taps, the water valve
• Sent emails, messages, official documents, bank transactions
• Whether you hit someone while driving

What Are the Symptoms of Checking OCD?

The visible face of this condition is repeated checking behaviour, but most of the cycle takes place in the mind.

Visible checks

• Touching knobs and locks in a particular order and a particular number of times before leaving home
• Turning back home from the road, or even from work
• Taking photos or videos of the hob or the door and looking at them repeatedly during the day
• Opening and rereading a sent email again and again, checking whether it went to the wrong person
• After driving, going back along the same road to see whether "something happened"

Invisible checks

• Replaying the moment you turned off the hob in your mind from beginning to end
• Trying to recall details: "Did I turn the knob to the left or to the right?"
• Asking your spouse, child or neighbour, "I locked the door, didn't I?"
• Searching the internet for things like "what happens if the hob is left on"

That familiar feeling after checking

Perhaps the most confusing aspect of the cycle is that the more you check, the less certain you feel. Researchers have observed this too: a person who checks something again and again begins to remember that moment less clearly, not more. This is because the mind no longer remembers a single moment of switching off, but dozens of similar moments of checking. The question "Which one was today?" increases uncertainty, and uncertainty leads to yet another check.

What Causes Checking OCD? Forgetfulness or Obsession?

Many people who check frequently first wonder, "Is my memory getting worse?" Yet the problem is usually not memory itself but trust in memory. The person has in fact done the task and remembers it; but alongside intense anxiety, that memory does not feel "solid" enough.

The main factors that feed this cycle are:

An inflated sense of responsibility: The thought "If there's a fire and the neighbours get hurt, it will be my fault" places an ordinary possibility on the person's shoulders as a heavy burden. Living in a block of flats can intensify this feeling; the mind takes into account not only your own home but also the baby downstairs and the elderly lady upstairs.

Intolerance of uncertainty: "I probably turned it off" is not enough for someone in this situation; they look for the feeling of "I definitely turned it off". If you would like to understand how uncertainty turns into anxiety, you can also read our article on anxiety about uncertainty.

Overestimating likelihood: The chance of the hob being left on and the chance of this turning into a disaster become blurred together in the mind, and a small possibility is perceived as an almost certain danger.

A real experience: Sometimes symptoms begin after something that really happened. A fire in a relative's home, a news report about a gas explosion seen on television, or the heightened sensitivity about gas valves after the 6 February 2023 earthquakes are examples. In such situations being careful is understandable; the problem begins when caution starts running your life.

Waiting for the feeling of "being completely sure": Many people keep checking until a feeling inside them says, "Right, that's done." The trouble is that in an anxious mind this feeling either comes late or never comes at all. When a person ties the end of a check not to their eyes or their reason but to this vague inner signal, a five-second glance becomes a five-minute ritual.

Stress and tiredness: During sleepless, busy periods full of responsibility, the mind produces more doubt. Starting a new job, having a baby or moving into a home on your own for the first time are periods when symptoms tend to increase.

Obsessive checking is related to a general wish to manage everything, but the two are not the same thing. We look at this broader tendency separately in our article on the need to control everything.

How Does Checking OCD Affect Daily Life?

Imagine a man who works in an accounts department and, every evening before leaving the office, reopens the payment instructions he has sent. He reads the figures three times, then once more. Even when he gets home he cannot rest; at midnight he checks his emails on his phone. He is known as someone meticulous who never makes mistakes at work; yet his working day runs an hour longer every day, his sleep is broken, and he believes that if he ever makes a mistake his life will be ruined. From the outside this picture may look like "diligence", but inside the person an alarm is constantly ringing.

Doubt behind the wheel: "Did I hit someone?"

One of the least talked-about forms of checking appears while driving. When the car goes over a speed bump, passes close to a pedestrian crossing or a shadow appears in the mirror, the thought arises: "What if I hit someone and didn't notice?" The person goes back along the same road, looks at the pavements, searches the local news in the evening for accidents, and even examines the car's bumper. Some eventually start driving only on familiar roads, in daylight and at quiet times; some give up driving altogether.

These people are usually extremely careful drivers. The doubt is the product not of a real accident, but of being unable to tolerate the possibility of having been involved in one. People carry this like a secret out of fear that "If I tell anyone, they'll think I'm irresponsible." Yet this too is a well-known form of checking-themed doubt, and in therapy it is worked on with the same principles: carrying on without turning back, stopping the news searches, being able to stay with the doubt.

Common effects include:

• Being late: Leaving the house can take half an hour; people are late for work, school and appointments.
• Avoidance: Some people stop using the hob altogether, stop ironing, or avoid being the last person to leave the house.
• Fatigue in relationships: A spouse or flatmate becomes worn out from constantly giving reassurance. The sentence "I turned it off, I saw it, don't worry" may be repeated dozens of times a day.
• Shame: The person invents excuses to hide going back; they say, "I forgot my phone."
• Being unable to go on holiday: Leaving the house empty for a few days can create unbearable anxiety; even going back to your hometown for the bayram (religious holiday) becomes difficult.

Practical Suggestions for Coping With Checking OCD

The following suggestions do not replace professional support, but they can help you recognise the cycle and take small steps.

1. Do a single, mindful check. When you turn off the hob, slow down, look at the knob and say to yourself, "I've turned it off." Then deliberately leave the kitchen. The goal is not to ban checking altogether but to bring it down to once.
2. Limit photo and video checking. Evidence captured on your phone is reassuring at first, but over time it becomes a new ritual. When you notice yourself turning to a recording, make a note of it and gradually cut back.
3. Put the urge to go back on hold. When the urge to "just take a look" comes on the stairs, keep walking. You will notice that the anxiety rises in the first few minutes and then falls.
4. Count your reassurance questions. Count how many times a day you ask "Are you sure?" Seeing the number is a good starting point for reducing it. You can agree with your family on how these questions will be answered.
5. Stop arguing with the doubt. Trying to find logical answers to "What if it was left on?" only prolongs the debate. Instead you can say, "This is a doubt thought; I can stay with this uncertainty."
6. Take your tiredness into account. Knowing that doubt will increase on days when you have not slept well allows you to be more understanding towards yourself.

Checking buys you a feeling of certainty for a short while, but each time you pay for it with a bigger doubt.

When Should You Seek Professional Support?

Situations in which you might consider speaking to a professional include:

• Checking takes up a significant part of your day and makes you late
• You are falling behind on what you need to do at work, at school or at home because of checking
• You have started avoiding situations such as using the hob, driving or leaving the house empty
• Your spouse, children or flatmate have to take part in your checking
• You experience intense anxiety, palpitations or anger when you cannot check
• What you are going through has started to make you feel hopeless, exhausted and joyless

When symptoms are very intense, an assessment by a psychiatrist may also be recommended alongside psychotherapy.

How Is Checking OCD Addressed in Therapy?

For this picture, Cognitive Behavioural Therapy, and in particular the Exposure and Response Prevention (ERP) approach, is widely used. You can look at our anxiety and panic page for the general approach taken with anxiety-related problems.

Mapping the doubt

In the first stage we look in detail at what is checked, at what times and how many times; which thought triggers the checking and what happens after it. Invisible mental checks and reassurance seeking are also added to this map, because they are often overlooked.

Learning to stay unchecked

Next, a list of steps is drawn up together. The first step might be "checking the hob once and leaving the kitchen". Later steps might progress to "locking the door once when leaving and not going back", "not reopening an email after sending it" or "leaving the house right after turning off the hob and staying out for an hour". At each step the person tries to stay with the doubt and let the anxiety subside in its own time.

Working on responsibility and probability

The cognitive work addresses beliefs such as "If anything happens it will be entirely my fault." For example, in the "responsibility pie" exercise, all the factors that would play a part in a possible accident are listed together; the person often notices how large a share they have been allocating to themselves. The way probabilities are exaggerated in a chain is also examined separately.

Between-session work

Most of the change happens not in the therapy room but in everyday life. Each week the person practises the steps chosen together at home, at work or on the road, and notes how anxious they felt, how long it took for the anxiety to fall and which thoughts came up. In the next session these notes are reviewed together. Some days are hard and some steps have to be repeated; this is a natural part of the process and does not mean going backwards.

Involving loved ones in the process

Relatives who give reassurance are an important part of the process. When they are also informed, reduce reassurance in a planned way rather than cutting it off all at once, and use a loving tone as they do so, change becomes easier.

Frequently Asked Questions

Does taking a photo of the hob help with checking OCD?

It may be reassuring in the short term, but for most people looking at the photo gradually becomes a new checking ritual, and they start to doubt the photo itself. In therapy, this kind of "evidence gathering" is also gradually reduced.

Could my constant checking be a sign of absent-mindedness or forgetfulness?

With genuine forgetfulness, a person skips doing something and realises it later. With checking OCD, the task has usually been done; the problem is not being able to trust the memory of having done it. If you have serious concerns about your memory, it is also helpful to discuss this with a professional.

Will I never check anything after therapy?

The aim is not to never check, but to be able to settle for reasonable checking. Looking at the valve before a long journey or locking the door are healthy behaviours; what changes is that their number, and the distress they cause you, decrease.

Leaving my home empty when going on holiday or away for the bayram is very hard for me; what can I do?

It can help to do the sensible checks once before leaving, working from a list, and then leave the list by the door. Calling a neighbour from the road to check on the house or frequently opening the camera app keeps the cycle alive. If this anxiety constantly overshadows your holidays, it is an important goal that can be addressed in therapy.

• #checking OCD
• #OCD
• #doubt
• #reassurance seeking

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Eda Erkan Alapala

Klinik Psikolog. İstanbul Kent Üniversitesi Klinik Psikoloji Tezli Yüksek Lisans mezunu; bilişsel davranışçı terapi, çocuk merkezli oyun terapisi ve çocuk-ergen psikoterapisi alanlarında eğitimlerini tamamlamıştır.

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