The ABC's of OCD: Symptoms, Obsessions, Compulsions & ERP Treatment

Obsessive-compulsive disorder (OCD) is one of the most misunderstood mental health conditions out there. Somewhere along the way, OCD became shorthand for “I like things organized” or “I’m particular.”

That’s not OCD. That’s a preference.

Real OCD involves a cycle of intrusive thoughts and behaviors that can take over someone’s day—and their peace of mind.

Let’s break it down.

Obsessions (The “O” in OCD)

If you’ve ever had a song stuck in your head, you know how annoying intrusive thoughts can be. Now imagine that thought doesn’t just stick—it attacks. It comes back over and over again, louder, scarier, and more convincing each time.

And the worst part? You can’t shut it off… unless you do something very specific.

That’s an obsession.

Obsessions are:

• Intrusive (they pop in uninvited)

• Persistent (they don’t go away)

• Distressing (they feel urgent, scary, or wrong)

Common OCD obsessions include:

• Contamination OCD: fear of getting sick or infecting others

• Harm OCD: fear of hurting someone (despite not wanting to)

• Scrupulosity OCD: fear of moral or religious failure/punishment

• Order/Symmetry OCD: an overwhelming need for exactness or things feeling “just right”

• Relationship OCD (ROCD): constant doubt about your relationship or partner

Now you might be thinking: “I’ve had thoughts like that before.”

Exactly. Everyone has.

But here’s the difference:

OCD thoughts don’t pass.They stick. They loop. They demand certainty.

You might worry about getting sick during flu season—but are you avoiding handshakes completely?You might question your relationship—but are you asking your partner 10 times a day if everything is okay?

If the thought runs the show—that’s OCD.

Compulsions (The “C” in OCD)

Compulsions are what you do to try to get rid of the obsession—or at least take the edge off.

They can be obvious behaviors or more subtle mental rituals. Either way, they feel necessary, not optional.

Common OCD compulsions include:

• Excessive hand washing or cleaning

• Checking (locks, stove, doors… again and again)

• Rearranging or lining things up “just right”

• Touching, tapping, or counting

• Reassurance seeking (“Are you sure everything is okay?”)

Again, most people have done these things.

But let’s reality check it:

• Are you washing your hands for 20 seconds… or 20 minutes?

• Locking your door once… or performing a 5-minute ritual?

• If something interrupts you, do you feel like you have to start over?

That’s the shift from habit → compulsion.

The OCD Cycle (Why It Keeps Coming Back)

OCD runs on a loop:

Obsession → Anxiety → Compulsion → Temporary Relief → Back to Obsession

The compulsion works… for about five minutes.

Then the brain goes:“Hey, that helped. Let’s do that again next time.”

And just like that, the cycle gets stronger.

OCD Treatment: What Actually Works

As an integrative therapist, I’m usually open to different approaches.

OCD is the exception.

The gold standard for OCD treatment is Exposure and Response Prevention (ERP therapy).

ERP helps you:

• Face the intrusive thought (exposure)

• Resist the compulsion (response prevention)

• Learn that anxiety will rise—and then fall—on its own

Over time, your brain stops sounding the alarm.

It’s not about “getting rid” of thoughts.It’s about changing your relationship to them.

And yes—it works.

If you are in therapy for OCD and ERP is not part of your treatment, it may be worth reconsidering your approach.

Ready to Break the OCD Cycle?

At Therapeutic Interventions and Psychological Services, we specialize in evidence-based OCD treatment using Exposure and Response Prevention (ERP).

If this article hit a little too close to home (you know who you are), let’s talk.

Schedule your free 15-minute consultation and start taking your time—and your brain—back.