Exposure Therapy for OCD

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Although there are a variety of behavioral therapies for treating OCD, almost all of them focus on exposing you to those things that you fear most, such as germs or an upsetting thought.

While exposure therapy for OCD can be very effective, it is not uncommon for people to quit treatment because they are unwilling to experience the intense distress that can accompany an exposure exercise.

In addition, and perhaps more importantly, many people do not fully understand the rationale behind exposure-based treatments, and thus have trouble sticking with it when things get tough. For this reason, psychoeducational that helps people understand exposure therapy can help improve its chance of success rate.

This article discusses how exposure therapy can be used to treat OCD, including how it works and how effective it can be.

Why Exposure Works for OCD

Exposure-based therapy works for OCD by exposing the individual to the feared stimulus, either by imagining it or through real-world exposure, and then changing the response to that stimulus. 

This treatment is known as exposure and response prevention (ERP), and it is a type of cognitive behavioral therapy (CBT). In ERP, the focus is on facing fears while preventing compulsive behavior that is usually used to alleviate feelings of anxiety. 

The goal of this process is for people to learn that they can cope with feelings of distress or discomfort and find new ways to respond. 

Habituation: The Backbone of Exposure Therapy

Exposure-based treatments take advantage of a natural process called habituation. Habituation occurs when a person stops responding or paying attention to a stimulus, such as a thought, object, place, person or action, with repeated exposure.

Everyday life is full of examples of habituation. For instance, when people first move to a new neighborhood, they may be aggravated by the noise of a busy highway that runs near their house. However, with each passing day, the noise from the highway fades into the background until it is no longer even noticed. In this example, the person has become habituated to the sound of the highway.

Exposure-based behavior therapies work by promoting habituation to things that are feared by creating opportunities to unlearn dangerous or threatening associations.

Avoidance Reinforces Fear

At the same time, exposure-based therapies reduce avoidance, which reinforces fearful thoughts. This is important because avoiding things we are afraid of sends a very powerful message to our brains that there really is good reason to fear such things and that we do not have the skills to cope with them. Let's look at a practical example to see how exposure works to promote habituation.

An Example of Avoidance

Imagine that you have a fear of dogs. Now picture yourself on a sidewalk as someone approaches you with their dog. As the dog approaches your anxiety will start to rise. If you run away, your anxiety will subside immediately but you will be teaching yourself that you cannot handle dogs, that the distress dogs cause you is intolerable and that avoidance is the only way to stay safe.

Avoidance would keep you stuck being afraid of dogs forever, as you would never get a chance to unlearn this fear and challenge these beliefs.

An Example of Habituation

On the other hand, if you did not run away but instead let the dog come up to you, your anxiety would likely get higher than you are used to, for longer than you are used to. However, with time, and provided the likely possibility that the dog did not bite you, your anxiety would decrease through the natural process of habituation.

If you met this dog on the sidewalk every day for a month without incident, your brain would continue to unlearn its fear of dogs and your level of anxiety would decrease. At the same time, what distress you did experience would disappear more and more quickly.

Eventually, you would feel no distress at all when encountering the dog. You might even enjoy spending time with him. In short, you would be habituated to the dog.


By utilizing habituation and preventing avoidance, exposure therapy allows people to become more accustomed to the thing they fear. Over time, fear begins to subside and people are able to replace previous avoidance behaviors with more helpful coping strategies.

Using Habituation and Exposure in Treatment for OCD

Exposure exercises in behavior therapy for OCD operate on the same principles as those illustrated in the above example. Essentially, patients are exposed to feared objects, such as a contaminated door handle or fearful thoughts, like a loved one dying in a car crash, over and over again until their anxiety has decreased.

People who have OCD are prevented from engaging in rituals or compulsions during the exposure. Rituals are a form of avoidance that prevent you from unlearning your fear and realizing that you can, in fact, cope with the anxiety caused by obsessions.

As you are repeatedly exposed to the thing you are afraid of and no negative consequences occur, your fear will begin to disappear.


Obsessive compulsive disorder is usually treated with medication, psychotherapy, or both. Each person's specific treatment plan will vary based on their needs, but evidence suggests that exposure-based treatments can be helpful for many.

According to a 2019 review, ERP is considered one of the most effective types of treatment for obsessive compulsive disorder. Some randomized controlled trials indicate that it is equally or even more effective than serotonin reuptake inhibitors.

However, around half of people do not show improvement, and between a quarter and a third drop out of treatment early. This may be due, in part, to the nature and severity of OCD symptoms. Those with less severe symptoms appear to benefit from exposure treatments more than those with more severe symptoms.

The National Institute of Mental Health notes that exposure and response prevention can be effective in reducing compulsive behaviors in OCD, even among those who do not wish to take medication.

The International OCD Foundation (IOCDF) recommends exposure and response prevention and/or medication as the first-line treatments for OCD. 

A Word From Verywell

Of course, as in the earlier example of the dog, such exposures require you to tolerate your anxiety being higher than you are used to, for longer than you are used to. However, once this short-term discomfort passes, in the long term your fear will subside and you will no longer need to engage in the rituals or avoidance that dominate your life.

Exposure-based therapies offer an effective way to reduce symptoms of OCD, but they require patience and you have to be willing to give them a chance to work.

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5 Sources
Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
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