Chart — Mental Health
Obsessions vs Compulsions
The two halves of OCD: obsessions are intrusive thoughts that drive anxiety up, and compulsionsare the repetitive acts that bring it briefly down — which is exactly why the cycle repeats.
Educational use only. Diagnosis and treatment are provider-directed. This chart is an educational comparison aid. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
Side by Side
| Feature | Obsessions | Compulsions |
|---|---|---|
| What it is | Recurrent, intrusive, unwanted THOUGHTS, urges, or images | Repetitive BEHAVIORS or mental acts the person feels driven to perform |
| Effect on anxiety | Triggers / increases anxiety | Temporarily relieves the anxiety (which reinforces it) |
| Voluntary? | Involuntary and unwanted (ego-dystonic) | Performed to neutralize the obsession; resisting causes distress |
| Contamination theme | 'My hands are covered in germs' | Excessive hand-washing, cleaning, avoiding 'dirty' objects |
| Doubt theme | 'Did I lock the door / turn off the stove?' | Repeated checking |
| Symmetry theme | 'Things must be exactly even/ordered' | Arranging, ordering, counting, repeating |
| Harm theme | Intrusive violent or taboo thoughts | Mental rituals, reassurance-seeking, avoidance |
The OCD Cycle
Obsession → anxiety → compulsion → temporary relief → reinforcement → obsession returns. Because the compulsion relieves anxiety in the short term, the brain learns to repeat it, and the ritual grows. Exposure and response prevention (ERP) breaks the loop: face the trigger, resist the ritual, and let the anxiety fall on its own (habituation).
Exam Traps
- ✦Obsession = the THOUGHT (drives anxiety up); compulsion = the ACT (brings anxiety briefly down).
- ✦The relief is temporary, which reinforces and strengthens the cycle.
- ✦Early nursing care: allow time for the ritual and ensure safety — don't stop it abruptly; limit gradually.
- ✦ERP and high-dose SSRIs (or clomipramine) are the treatments.
- ✦OCD is ego-dystonic (unwanted/distressing) — not the same as obsessive-compulsive personality disorder.
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with American Psychiatric Association (DSM-5-TR) · American Psychiatric Nurses Association (APNA) · SAMHSA. It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →