28/05/2026
“Pure O” OCD is one of the most misunderstood presentations of OCD because the compulsions are often invisible to everyone — including the person experiencing them.
Many people believe they “only have intrusive thoughts”, when in reality the compulsions are happening silently through rumination, reassurance, mental reviewing, checking feelings, or endlessly trying to find certainty.
One of the most important moments in therapy is learning to recognise those hidden rituals for what they are.
In this article, I explore:
• Why “Pure O” is a misleading name
• The hidden compulsions most people miss
• Why reassurance and research can become rituals
• The “Relief vs Resolution” test I use in sessions
• How ERP therapy helps break the cycle
Learn more here: https://federicoferrarese.co.uk/2026/05/28/pure-o-2/