Obsessive and Compulsive Behaviors in OCD and Beyond

Most people have heard of OCD – obsessive-compulsive disorder – and many associate it with excessive hand-washing or an unusual need for order. But compulsive behavior is far more nuanced than these popular images suggest. Compulsions are not quirks or personality traits. They are driven, repetitive actions that a person feels compelled to perform, often to neutralize the anxiety triggered by an intrusive thought. And while OCD is the primary clinical home for these behaviors, compulsions appear across a surprising range of mental health conditions. Understanding what compulsions actually are, how they vary, and how they can be treated is crucial for anyone navigating these challenges – or supporting someone who is.

What are compulsions? 🔗

A compulsion is a repetitive behavior or mental act that a person feels driven to perform in response to an obsession or according to rigid, self-imposed rules. The goal is to reduce distress or prevent a dreaded outcome – but the relief is only temporary. According to diagnostic criteria, compulsions become clinically significant when they are time-consuming (often exceeding one hour per day) and cause meaningful interference in social, occupational, or day-to-day functioning. Crucially, these behaviors are not logically connected to the threat they are meant to prevent – or they are wildly disproportionate to it. The person performing them usually recognizes this, yet feels unable to stop.

Types of compulsions 🔗

Clinicians and researchers have traditionally organized compulsive presentations into recognizable subtypes. While OCD is a highly heterogeneous condition and individuals often fall into more than one category, these groupings help map the range of compulsive behavior in meaningful ways.

Washers and cleaners 🔗

Washers are driven by a fear of contamination – a worry that they or someone they love will be harmed by germs, dirt, or toxic substances. Their compulsions typically involve excessive hand-washing, cleaning rituals, or avoidance of objects and places they associate with contamination. Research notes that washers are more likely to have co-occurring personality disorders compared to other OCD subtypes, and neuropsychological studies suggest they tend to perform better on cognitive tests of inhibition and verbal memory than checkers do.

Checkers 🔗

Checkers repeatedly verify things – whether the stove is off, the door is locked, or whether they may have inadvertently caused harm. Studies show that checking is the most reported compulsion in OCD, affecting around 80% of individuals with the condition. The checking cycle starts with uncertainty – “Is this okay?” – and because the brain doesn’t trust its own initial intuition, it demands verification. The temporary relief that follows reinforces the behavior, but it also teaches the brain to distrust itself further, creating an escalating loop. Research on compulsive checking shows it is directly linked to deficits in working memory and cognitive flexibility, with OCD checkers showing greater difficulty disengaging from perceived threats than other OCD subtypes.

Doubters and sinners 🔗

Doubters are consumed by a fear that something terrible will happen if things aren’t done perfectly or in exactly the right way – or that they will be morally punished for imperfection. This subtype is closely linked to pathological guilt, excessive religiosity, and a relentless need for certainty. The compulsion is often internal: mentally reviewing past actions, seeking reassurance, or repeating prayers or phrases until they “feel right.”

Counters and arrangers 🔗

Counters and arrangers are preoccupied with symmetry, order, and specific numerical patterns. They may hold superstitions about certain numbers, colors, or arrangements, and feel intense discomfort – often described as a feeling that something is “not just right” – until objects are perfectly aligned or a sequence is completed the correct number of times. Unlike contamination fears, the distress here is less about catastrophic outcomes and more about an overwhelming sense of incompleteness.

Hoarders 🔗

Hoarders within the OCD framework keep objects out of a fear that discarding them will cause harm or loss. Estimates suggest that up to 25% of people with OCD experience compulsive hoarding, though it is now also recognized as a separate condition – hoarding disorder – with distinct features. In OCD-related hoarding, the behavior is unwelcome and ego-dystonic: the person does not want to hoard but feels they must. Hallmarks include excessive emotional attachment to possessions, difficulty with decision-making, and a pathological perfectionism that makes discarding feel catastrophically risky.

Compulsive behavior beyond OCD 🔗

While OCD is the primary diagnosis associated with compulsions, repetitive and driven behaviors appear across several other mental health conditions. Recognizing this overlap is clinically important and helps avoid misdiagnosis or undertreatment.

Depression and compulsive rumination 🔗

In major depressive disorder, compulsive behavior often takes an internal form: rumination. Ruminations are passive, negative thought loops focused on oneself and one’s distress, without progressing toward problem-solving. They replay past failures, fuel self-criticism, and maintain a bleak emotional state. Research published in Behavior Research and Therapy found that rumination heightens vulnerability to depression, worsens insomnia, and actively interferes with the effectiveness of psychotherapy. Critically, longitudinal research by psychologist Susan Nolen-Hoeksema found that people who ruminate are four times more likely to develop major depression than those who do not – making it not just a symptom of depression, but a driver of it. When rumination occurs in the context of OCD, it functions as a mental compulsion: a driven, repetitive attempt to “solve” an intrusive thought that only keeps the cycle alive.

Schizophrenia and obsessive-compulsive symptoms 🔗

The overlap between schizophrenia and OCD is more common than many realize. Research indicates that up to 25% of people with schizophrenia report clinically significant OCD symptoms, and the presence of compulsions tends to worsen long-term outcomes. OCD and body dysmorphic disorder share delusional elements with schizophrenia, and distinguishing between a compulsion and a delusion-driven behavior requires careful clinical assessment. The two conditions can co-occur – a person may have both schizophrenia and genuine OCD – and each requires targeted treatment.

Medication-induced compulsive behaviors 🔗

Some compulsive behaviors emerge as direct side effects of psychiatric medications rather than from the underlying condition itself. This is an often-overlooked clinical problem. Aripiprazole (Abilify), an atypical antipsychotic, has been documented to sometimes cause compulsive behaviors including gambling and overeating. More broadly, atypical antipsychotics – while effective for psychosis – carry a range of side effects that must be continuously monitored, including movement disorders and behavioral changes. In some cases, antipsychotic treatment can actually trigger or worsen OCD symptoms in patients with schizophrenia, adding another layer of complexity to treatment planning. This is why clinical guidelines emphasize detailed and ongoing assessment of both obsessive-compulsive symptoms and medication regimens in any patient presenting with both psychosis and compulsive behavior.

Managing rituals: therapeutic approaches 🔗

The good news is that compulsive behaviors, even entrenched ones, are treatable. The field has developed well-validated interventions that address both the behavioral and cognitive dimensions of compulsions.

Exposure and response prevention (ERP) 🔗

Exposure and response prevention (ERP) is considered the first-line psychotherapy for OCD, supported by decades of research. The core idea is straightforward: a person is guided to deliberately confront the thoughts, objects, or situations that trigger their obsessions – and then, crucially, to refrain from performing the compulsion that would usually follow. Over time, this process retrains the brain’s alarm system, so that triggers no longer automatically produce overwhelming anxiety. The initial discomfort is real, but it subsides on its own – without the ritual – and the person learns that the feared outcome does not materialize. ERP can be conducted in vivo (in real situations), through imaginal exposure, or increasingly through virtual reality environments for situations that are difficult to recreate in person.

Cognitive behavioral therapy (CBT) 🔗

CBT for OCD works by targeting the faulty beliefs that give obsessive thoughts their power – the inflated sense of responsibility, the overestimation of threat, and the assumption that thinking something makes it meaningful or dangerous. By challenging these interpretations, CBT helps loosen the grip of compulsions at their cognitive root. Research consistently shows that CBT incorporating ERP produces large effect sizes in reducing OCD symptoms, and it outperforms medication alone in head-to-head comparisons. For depression-related rumination specifically, CBT interventions directly target compulsive thought loops by teaching individuals to recognize the difference between productive reflection and driven, repetitive overthinking – and to redirect accordingly.

Pharmacotherapy and combined approaches 🔗

Selective serotonin reuptake inhibitors (SSRIs) are the primary pharmacological treatment for OCD, often prescribed at higher doses and for longer trial periods than when used for depression alone. An adequate medication trial for OCD typically takes between 8 and 12 weeks, which is longer than the standard timeframe for treating depressive symptoms. For OCD co-occurring with schizophrenia or bipolar disorder, treatment becomes more complex – mood stabilization or careful antipsychotic selection must be prioritized, and SSRIs are added with caution. In all presentations, the most effective outcomes generally come from combining medication with psychological therapy rather than relying on either approach alone. Acceptance and commitment therapy (ACT) has also emerged as a promising complement to ERP, particularly for patients who struggle with ERP’s demanding exposure exercises – focusing instead on engaging in valued life activities despite the presence of obsessions.

Recognizing the limits of rituals 🔗

A key insight from all these therapies is that compulsive rituals are not solutions – they are temporary relief that keeps the underlying anxiety alive. Every time a compulsion is performed in response to an obsession, it sends a signal to the brain that the obsession was worth taking seriously. Breaking this cycle requires tolerating short-term discomfort to achieve long-term freedom from the compulsion. This is not easy, but it is achievable. Research shows there is typically a gap of 10 to 17 years between the onset of OCD and the start of effective treatment – largely because people do not recognize their compulsions for what they are, or do not know that evidence-based help exists. Awareness is the first step.

What do you think? Compulsive behavior exists on a spectrum – from mild, manageable rituals to behaviors that dominate entire days. At what point do you think a repetitive behavior crosses the line into something that needs clinical attention? And given how compulsions appear across depression, schizophrenia, and medication side effects, does this change how you think about the relationship between different mental health conditions?

References

1. https://en.wikipedia.org/wiki/Obsessive%E2%80%93compulsive_disorder
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9. https://pmc.ncbi.nlm.nih.gov/articles/PMC5310107/
10. https://www.mountsinai.org/health-library/report/schizophrenia
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17. https://cogbtherapy.com/stop-ruminating
18. https://pmc.ncbi.nlm.nih.gov/articles/PMC9063577/
19. https://pmc.ncbi.nlm.nih.gov/articles/PMC6935308/