OCD You Can’t See: When Rumination Becomes a Compulsion 

OCD is often misunderstood as something you can see, such as checking locks or washing hands. For many people, the most exhausting part of OCD takes place where you can’t see: in the mind. The idea is: “If I just think about something a little more, I’ll finally feel at peace.” The brain is constantly ruminating, analyzing, and replaying in ways that can’t just be blamed on being an air sign. 

To the external world, these things are happening quietly simply because they’re out of sight. But for an individual with OCD, the mind is anything but quiet. What’s happening isn’t just a curious case of overthinking, it’s a series of invisible mental compulsions that keep OCD alive and—well, thriving. 

Crash Course on the OCD Cycle 

For those that are (luckily) unseasoned, let me briefly touch on the “OCD cycle.” It usually starts with a trigger—an intrusive thought, a feeling, or something external like seeing a dog being walked. That trigger sparks an obsession that causes anxiety, uncertainty, or doubt, causing questions about what might happen, who you are, or what you want. Normally, the obsession goes against something you internally know. 

In order to feel better, safe, or certain the obsession won’t happen, this is where compulsions come in—avoidance, reassurance, rituals, or routines that aim to neutralize the thought or feeling. They might feel effective at first, but the calm is an illusion that doesn’t last and pulls you deeper into the cycle. 

What Are Mental Compulsions?

Most people imagine OCD compulsions as things you do, but mental compulsions are things you think. They’re repetitive, internal rituals someone does in their head to try and make the anxiety disappear–replaying, analyzing, seeking reassurance, counting, scanning. Instead of checking a lock, they’re checking memories, thoughts, intentions, or feelings over and over and over. 

• “Did I make a mistake in that conversation?” 
• “Does that thought mean I’m a bad person?” 
• “Am I sure nothing bad happened?” 

Obsessions are intrusive, unexpected, and involuntary. Compulsions, on the other hand, typically feel logical—like of course you should replay the conversation one more time, or without a doubt you should remind yourself that you’re a good person. The problem is that the relief is fleeting. OCD’s arch nemesis is uncertainty. It wants to know for sure. So… the brain asks for just one more check, one more replay, one more revisit—in hopes that this go ‘round, there will be clarity or closure. In reality, this sparks a mental loop gaining momentum like someone somersaulting down a hill, unable to stop. 

Mental Compulsions in the Wild 

Really, mental compulsions are more than just overthinking, but what do they look like in real life? 

• Replaying conversations to check tone, wording, facial expressions, or intentions to find proof you didn’t say or do something that could be interpreted as “wrong.” 
• Silently saying words, phrases, numbers, or prayers to “undo” negative thoughts. 
• Reassuring yourself in your head—things like “I’m a good person,” “I’d never do that,” or “that doesn’t mean anything.” 
• Listing reasons something won’t or couldn’t happen to build a case against a feared situation, then doing it all over again when the reassurance doesn’t last. 
• Constantly mentally scanning thoughts or feelings: “Am I thinking it? Do I feel it? Is it still there?” and checking again to see if reassurance worked or needs to be repeated. 
• Analyzing your feelings or comparing current and past thoughts to see if something has changed and what that change could mean. 
• Actively trying to hold onto thoughts, memories, or experiences. 
• Mentally tweaking details of a past event or reviewing past actions to see how they might change your current feelings, your imagined future, or whether your morals lined up with your actions. 
• Going over explanations or defenses “just in case” someone confronts you about something.
• Trying to prevent a thought or topic from coming in (“Don’t think about…”) or canceling out thoughts by immediately replacing them with better or safer ones. 
• Doing things to a certain amount, counting up to a certain number or by intervals, or believing that certain numbers hold special significance. 
• Trying to “solve” uncertainty by chasing answers to questions that don’t have one or telling yourself you’re just problem-solving, even when no new clarity comes. 

Mental compulsions are harder to spot because they happen in a person’s brain space rather than in the open for anyone to see. While they’re invisible, they take up hours of mental time, and deplete mental energy in a way that’s disruptive and all-consuming. 

Why Rumination Feels Like Relief But Isn’t. 

I said it, but I’m rewriting so it lands firmly: mental compulsions are often done in an attempt to make intolerable feelings of discomfort or anxiety take a hike. OCD likes order, structure, and control—but not in the “Type A, I color code my calendar,” way people might think. OCD hates the unknown, like people who think cilantro tastes like soap hate cilantro (sad for you). When there’s order or structure, things feel safe and predictable. With control, there are fewer unknown variables. Uncertainty and not knowing feel threatening—the emotional equivalent of nails on a chalkboard. There’s distress. There are tight muscles. There are clammy hands. The brain and body start to feel like a pressure cooker being pumped with air; the space can’t hold. 

To relieve some of that pressure, the brain feels compelled to run through that interaction one more time. It needs to replay that conversation four more times, scanning for every possible way the other person could’ve interpreted your words. It needs to analyze moments when you acted against your values so you can mentally rehearse what you wish you’d done differently. Mental compulsions are meant to put the fire out, but really, they’re just stoking the flames. 

Brief relief. Okay, now you can see how someone may have interpreted your words or felt about your actions. You feel prepared. You think, “Now that I know, I can figure out how to deal with that.” But the truth is, you don’t know. And in an hour, that certainty fades, you’re feeling anxious again, and we’re back at it. Mental compulsions feel comforting, but really, they just reinforce the idea that uncertainty is dangerous. Every short-lived moment of calm teaches OCD that rumination works. So it asks for seconds. 

Am I Overthinking or in an OCD Loop?

Some of us are just overthinkers. We naturally replay situations over, we often think about how our words could’ve landed, and we’re trying to problem solve. So what separates overthinking from OCD mental rituals? 

With overthinking, your mind might snag on a thought due to stress or trying to make sense of something, usually passing with time or distraction. Mental compulsions are thinking behaviors that serve an obsession. They’re done repetitively to ease anxiety or gain a sense of clarity. While they might bring a sense of calm for a moment, it’s short-lived and reinforces the cycle. 

How Therapy Can Help Break the Cycle 

This is where therapy comes in. Therapy starts by helping people understand what mental rituals look like and why they show up in the first place. Considering this blog is basically one long piece of psychoeducation, we’re off to a great start! From there, therapy helps break the cycle by shifting perspective and recognizing that mental compulsions are actions someone chooses to do in response to anxiety. Instead of trying to get rid of intrusive or obsessive thoughts, therapy focuses on helping you notice mental compulsions as they happen so they stop running on autopilot. 

Uncertainty is part of being human. It shows up for all of us. Life starts when we learn to let go of the idea that we need “to just know” to feel okay. In my work, I use Acceptance and Commitment Therapy (ACT) and Cognitive Behavioral Therapy (CBT) to help people build different relationships with their thoughts. Together, therapy becomes a practice arena for noticing mental loops without automatically acting on them, sitting with uncertainty even when it feels uncomfortable, and choosing responses intentionally rather than out of fear. With time, that work can pull you out of rumination and back into the present so you can reclaim the moments OCD’s been stealing. 

My goal isn’t to make life feel perfectly predictable. If you’re looking for that, I’ll be candid—my services might fall flat. But I am here to help you reach a place where you can sit with the unknown without brandishing rumination like a sword for protection. 

Please note, I don’t have swords or shields in this practice arena, but I do have fidgets, putty, and a dollar store sense of humor.