
Many people associate Obsessive-Compulsive Disorder (OCD) with visible behaviors like handwashing, checking locks, or arranging objects. But for some individuals, OCD happens almost entirely in the mind.
Pure-O OCD (short for “Purely Obsessional OCD”) describes a pattern of OCD where distressing intrusive thoughts are the most visible symptom, while compulsions happen internally rather than through obvious behaviors. These mental compulsions can include rumination, reassurance seeking, mental checking, or trying to “cancel out” thoughts.
Despite the name, Pure-O does not actually mean there are no compulsions. Instead, the compulsions are typically mental rather than behavioral. People may repeatedly analyze their thoughts, search for certainty, review memories, or mentally reassure themselves that the feared outcome is impossible.
People with Pure-O OCD often appear calm on the outside while experiencing intense mental loops, doubts, or intrusive images internally. Because the compulsions are largely invisible, this form of OCD is frequently misunderstood or missed entirely.
Over time, this internal cycle of intrusive thoughts and mental rituals can become exhausting and consume significant mental energy
Send me a message to learn more about OCD, Exposure and Response Prevention, or about my practice.
Pure-O OCD can attach to many topics. The specific theme varies from person to person, but the underlying cycle of intrusive thoughts and mental compulsions remains the same.
Common Pure-O themes include:
These thoughts are ego-dystonic, meaning they feel deeply inconsistent with the person’s true beliefs or intentions. The distress often comes from what the thoughts might “mean” about the person rather than from any real desire to act on them.
Common symptoms of Pure-O OCD include:
One of the most distressing aspects of Pure-O OCD is the search for certainty. The mind tries to answer impossible questions such as:
Because these questions cannot be resolved with complete certainty, the mind keeps looping back to them. The more someone tries to analyze or suppress the thought, the more powerful it often becomes.
Exposure and Response Prevention (ERP) is the most effective psychological treatment for OCD
ERP helps people learn to:
Through structured practice, intrusive thoughts become less threatening and less frequent over time.
Specialized treatments like Exposure and Response Prevention therapy typically cost more than general talk therapy due to the advanced training, structure, and clinical expertise involved. Fees reflect the intensity of treatment, session length, and the therapist’s specialization. Many clients find that evidence-based, targeted treatment leads to faster and more durable improvement, reducing long-term therapy costs overall.
For specific rates and insurance information, please visit the Fees & Insurance page.
If obsessive thoughts, anxiety, or compulsive behaviors are interfering with your life, you’re not alone. OCD often creates cycles of doubt, checking, reassurance seeking, and avoidance that feel difficult to break. Exposure and Response Prevention (ERP) therapy is the most effective, evidence-based treatment for OCD.
I’m a California therapist who specializes in evidence-based treatment for OCD. I provide structured, hands-on therapy and work actively and collaboratively with adults, teens and children to help them reduce unhelpful responses, face uncertainty, and make meaningful, lasting progress.
Many of the people I work with experience thoughts or images that feel disturbing, confusing, or difficult to say out loud. I’ve worked across multiple treatment settings and approach this material with openness, professionalism, and care. Together, we’ll make sense of what’s happening and move forward with a clear plan and consistent guidance.
Credentials, Experience and Affiliations
M.S.W., California State University, Long Beach
Licensed in California and available to clients in Los Angeles, Long Beach, Orange County, Inland Empire, San Diego, San Francisco, Sacramento and throughout California via secure telehealth.
Whatif Therapy
based in Lakewood, CA
Whatif Therapy | Matthew Baker, LCSW (CA #121926)
Evidence-based treatment for OCD, Anxiety, and PTSD.
Serving clients across California via secure telehealth.
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