OCD · Exposure
Contamination OCD Exposure Planner
Graded exposures with response prevention built in
About this worksheet
Contamination OCD is the most publicly recognized OCD subtype and one of the most commonly under-treated. It is not fear of germs — it is a loop of disgust or dread that only ends with washing, avoiding, or decontaminating. This planner is designed to be used by clinicians already trained in ERP; it captures the feared contaminant, the feared consequence (which is often physical, moral, or contagion-based), and the current rituals. It then builds a graded exposure ladder with an explicit response-prevention column — because exposure without RP is just exposure, and often makes things worse. The final section is a challenge log for SUDS start / peak / end so the client can see empirically that distress rises, peaks, and falls whether or not they perform the ritual. Special contamination presentations — mental contamination (Rachman), moral contamination, post-COVID contamination — respond to the same treatment principles though the specific exposures differ. Not a starter tool for clinicians without ERP training; refer to IOCDF-listed clinicians in that case.
When to use it
- Contamination OCD with washing, sanitizing, changing clothes, or avoidance rituals.
- Health-anxiety-driven contamination behaviors.
- Post-COVID onset or exacerbation of contamination fears.
- Mental contamination — feeling dirty without physical contact (Rachman).
- Requires ERP training. Refer to IOCDF-listed clinicians if not trained.
How to use it
- 1Name the contaminant and feared consequence
Physical (illness), moral (dirty), or contagion-based (spreading to loved ones). Concrete language, in the client's own words.
- 2Catalogue current rituals
Washing frequency, sanitizing, changing clothes, 'clean' vs 'dirty' areas of home, avoidance. This is what will be dropped or reduced.
- 3Build a ladder with response prevention
For every exposure, write the specific compulsion that will be prevented. Wash-once-not-three. No sanitizer for the next hour. Do not change clothes.
- 4Start mid-ladder
SUDS 40–60. Repeat until predicted and actual distress drop. Then climb.
- 5Track SUDS start / peak / end
The empirical evidence that distress falls without the ritual is the mechanism. Log it, share it, refer back to it.
Frequently asked questions
What is contamination OCD?+
An OCD subtype in which obsessions about germs, dirt, illness, or moral contamination drive compulsive washing, sanitizing, avoidance, or decontamination rituals. Not the same as reasonable hygiene.
How is contamination OCD different from being clean?+
Reasonable hygiene serves function, does not cause distress, and does not interfere with life. Contamination OCD is driven by distress, produces short-term relief followed by returning doubt, and progressively restricts life.
Do I need ERP training to use this worksheet?+
Yes. Exposure without response prevention can worsen OCD. If you are not trained in ERP, refer to an IOCDF-listed clinician.
What is mental contamination?+
A form of contamination OCD in which the feeling of dirtiness arises without physical contact — often triggered by memories, images, or moral events. Described by Rachman; responds to standard ERP with imaginal exposures.
Is this worksheet free?+
Yes. Free printable PDF. Sign in to send as a secure client link.
Related worksheets
Worksheet — Contamination OCD Exposure Planner — provided by TherapistAssist for clinical use. Not a substitute for assessment or treatment.