What OCD is, and what it isn't
Obsessive-compulsive disorder is a common, treatable mental health condition. It's not a personality quirk, and it's not about liking things neat.
Two parts: obsessions and compulsions
Obsessions
Unwanted thoughts, images, or urges that pop up again and again and cause anxiety, disgust, or a feeling that something is wrong.
- What if I left the stove on and the house burns down?
- What if I hurt someone I love?
- What if I'm contaminated and make my family sick?
Compulsions
Actions or mental rituals done to calm the anxiety or prevent something bad. They bring short relief, then the doubt returns.
- Checking, again and again
- Washing or cleaning until it feels "right"
- Asking others for reassurance
- Replaying, counting, or praying in your head
Some compulsions happen only in the mind. People sometimes call this "Pure O," but there are almost always rituals, they're just invisible.
Why the loop keeps going
Every time a ritual brings relief, the brain learns that the thought was dangerous and the ritual was necessary. So the next doubt arrives louder, and the ritual grows.
That's why "just stop" doesn't work, and why reassurance, however kind, often feeds OCD instead of calming it.
Common themes
OCD can attach to almost anything a person cares about. These are some of the most common forms.
Harm OCD: when your mind scares you
Frightening thoughts about hurting someone
Read the article →Relationship OCD: when doubt gets into love
Constant doubt about your partner or your feelings
Read the article →"Pure O": the rituals no one sees
When the compulsions all happen in your head
Read the article →Contamination OCD: more than germs
Fear, disgust and doubt, not a love of clean
Read the article →Unwanted sexual and taboo thoughts
The thoughts people are most afraid to say out loud
Read the article →Perinatal OCD: intrusive thoughts during pregnancy and after birth
Frightening thoughts about the baby you love
Read the article →Myths and facts
Tap a myth to flip it and see the fact.
Who it affects
Research suggests roughly 1 to 3 people in every 100 will live with OCD at some point in their lives. It often starts in childhood, the teen years, or early adulthood, and it affects people of every background.
Many people live with it for years before they get the right help, often because they don't know what it is, or they're afraid to describe their thoughts.
What helps
Exposure and response prevention (ERP) is a type of cognitive behavioural therapy. With a trained professional, you gradually face the thoughts and situations that trigger anxiety, without doing the ritual. Over time, the brain learns it can handle the doubt.
Medication, usually a type of antidepressant called an SSRI
This page can't tell you if you have OCD. If this sounds familiar, the next step is to talk to a doctor or a registered mental health professional.