Yale-Brown Obsessive-Compulsive Scale

Take a Personal ASSESSMENT

Step 1 of 3

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  • Before proceeding with the questions, please read the definitions below to familiarize yourself with "obsessions" and "compulsions".

    OBSESSIONS are unwelcome and distressing ideas, thoughts, images or impulses that repeatedly enter your mind. They may seem to occur against your will. They may be repugnant to you, you may recognize them as senseless, and they may not fit your personality.

    COMPULSIONS, on the other hand, are behaviors or acts that you feel driven to perform although you may recognize them as senseless or excessive. At times, you may try to resist doing them but this may prove difficult. You may experience anxiety that does not diminish until the behavior is completed.

    Examples of obsessions include: the recurrent thought or impulse to apologize for some perceived wrong, or to do serious physical harm to another person even though you never would.

    Examples of compulsions include: the need to repeatedly check appliances, the lock on the door, or check the internet for symptoms of a perceived illness. While most compulsions are observable behaviors, some are unobservable mental acts, such as silent checking or having to recite nonsense phrases to yourself each time you have a bad thought.

  • Part I - Symptom Checklist

    Read the following questions and check all answers that apply

    Aggressive Obsessions

    Example: Fear of eating with a knife or fork, handling sharp objects, walking near glass windows
    Example: Fear of poisoning other people's food, harming babies, pushing someone in front of moving object, hurting someone's feelings, being responsible by not providing assistance for some imagined catastrophe, causing harm by giving bad advice
    Example: Images of murder, dismembered bodies, or other disgusting scenes
    Example: Fear of shouting obscenities in public situations like church or in class, fear of writing obscenities
    Example: Fear of appearing foolish in social situations
    Example: Fear of driving a car into a tree, running over someone, stabbing a friend
    Example: Fear of "cheating" a cashier, shoplifting inexpensive items
    Example: Fear of causing an accident without being aware of it (such as a hit and run automobile accident)
    Example: Fear of causing a fire or burglary because of not being careful enough in checking the house before leaving
  • Contamination Obsessions

    Example: Fear of contracting AIDS, cancer, or other diseases from public restrooms, fear of your own saliva, urine, feces, semen, or vaginal secretions
    Example: Fear of picking up germs from sitting in certain chairs, shaking hands, or touching door handles
    Example: Fear of being contaminated by asbestos or radon, radioactive substances, fear of things associated with towns containing toxic waste sites
    Example: Fear of poisonous kitchen or bathroom cleansers, solvents, insect spray or turpentine
    Example: Fear of being contaminated by touching insects, dogs, cats, or other animals
    Example: Fear of adhesive tape or other sticky substances that may trap contaminants
    Example: Fear of getting ill as a direct result of being contaminated (beliefs vary about how long these disease will take to appear
    Example: Fear of touching other people, touching their food after you touch poisonous substances (like gasoline) or after you touch your own body
  • Sexual Obsessions

    Example: Unwanted sexual thoughts about strangers, family, or friends
    Example: Unwanted thoughts about sexually molesting either your own children or other children
    Example: Worries like "Am I homosexual?" or "What if I suddenly become gay?" when there is no basis for these thoughts
    Example: Unwanted images of violent sexual behavior toward adult strangers, friends, or family members
  • Hoarding/Saving Obsessions

    Example: worries about throwing away seemingly unimportant things that you might need in the future, urges you to pick up or collect useless things
  • Religious Obsessions

    Example: Worries about having blasphemous thoughts, saying blasphemous things, or being punished for such things
    Example: Worries about always doing "the right thing," having told a lie, or having cheated someone
  • Obsessions: Symmetry or Exactness

    Example: Worries about paper and books being properly aligned; worries about calculations or handwriting being perfect. Concerned another person will have an accident unless things are in the right place
  • Miscellaneous Obsessions

    Example: Belief that you need to know certain words (such as "thirteen") because of superstitions, fear of saying something that might be disrespectful to a dead person
    Example: Fear of saying certain words like "thirteen" because it is superstitious, fear of the dead.
    Example: Fear of having said the wrong thing, fear of not using the "perfect" word
    Example: Worries about losing a wallet, unimportant objects such as a scrap note of paper
    Example: Random, unwanted images in your mind
    Example: Words, songs, or music in your mind that you can't stop
    Example: Worries about the sounds of clocks ticking loudly or voices in another room that may interfere with sleeping
    Example: Worries about common numbers (like thirteen) that may cause you to perform activities a certain number of times or postpone an action until a certain lucky hour of the day
    Example: Fear of using objects of certain colors (e.g. black may be associated with death, red may be associated with blood, injury, or evil)
    Example: Fear of passing a cemetery, hearse, or black cat; fear of omens of death
  • Somatic Obsessions

    Example: Worries that you may have an illness like cancer, heart disease or AIDS, despite reassurance from your doctors that you do not and you are okay
    Example: Worries that your face, ears, nose, eyes, or other part of your body is hideous, and/or ugly despite reassurances to the contrary
  • Cleaning/Washing Compulsions

    Example: Washing hands many times per day or for long periods of time after touching, or thinking that you have touched, a contaminated object. This may include washing the entire length of your arm.
    Example: Taking showers or baths or performing other bathroom routines that may last several hours. If the sequence is interrupted, the entire process may have to be restarted.
    Example: Excessive cleaning of faucets, floors, kitchen counters, or kitchen, or other inanimate objects
    Example: Asking family members to handle or remove insecticides, garbage, gasoline cans, raw meat, paints, varnish, drugs in the medicine cabinet or kitty litter. If you cannot avoid these things, you may wear gloves to handle objects, such as when using a self-service gasoline pump
  • Checking Compulsions

    Example: Checking that you haven't hurt someone without knowing it. You may ask for reassurance or telephone to make sure that everything is alright
    Example: Looking for injuries of bleeding after handling sharp breakable objects. You may frequently go to doctors to ask for reassurance that you have not hurt yourself
    Example: Searching the newspaper or listening to the radio or television for news about some catastrophe that you believe you may have caused. You may also ask people for reassurance that you did not cause an accident
    Example: Repeated checking of door locks, stoves, electrical outlets, before leaving home; repeated checking while reading, writing, or doing simple calculations to make sure that you did not make a mistake (you can't be certain that you didn't)
    Example: Seeking reassurance from friends or doctors that you are not having a heart attack or getting cancer; repeatedly checking your pulse, blood pressure, or temperature; checking yourself for body odors; checking your appearance in the mirror; repeatedly checking the internet for information to diagnose or obtain information about a feared disease or physical condition
  • Repeating Rituals

    Example: Taking hours to read a few pages in a book or to write a short letter because you get caught in a cycle of reading and rereading; worrying that you didn't understand something you just read; searching for a 'perfect' word or phrase; having obsessive thoughts about the shape of certain printed letters in a book.
    Example: Repeating activities like turning appliances on and off, combing your hair, going in and out of the doorway, or looking in a particular direction; not feeling comfortable unless you do these things the 'right' way or number of times
  • Counting Compulsions

    Example: Counting objects like ceiling or floor tiles, books in a bookcase, nails in a wall, or even grains of sand on the beach; adding, subtracting, or recalculating in order to obtain a certain number; counting when you repeat certain activities, like washing.
  • Ordering/Arranging Compulsions

    Example: Straightening paper or pens on the desktop or books in a bookcase, wasting hours arranging things in your house in 'perfect' order and then becoming very upset if this order is disturbed
  • Hoarding/Collecting Compulsions

    Example: Saving old newspapers, notes, cans, paper towels, wrappers, and empty bottles for fear that if you throw them away you may need them one day; picking up useless objects from the street or from garbage cans.
  • Miscellaneous Compulsions

    Example: Performing rituals in your head, like saying prayers or thinking a 'good' thought to undo a 'bad'
    Example: Asking other people to reassure you, confessing to behaviors that you may not have done, believing that you have to tell other people certain words to feel better
    Example: Giving in to the urge to touch rough surfaces, like wood, or hot surfaces, like a stove top; giving in to the urge to lightly touch other people; believing you need to touch an object like a telephone to prevent an illness in your family.
    Example: Staying away from sharp or breakable objects, such as knives, scissors, and fragile glass.
    Example: Arranging your food, knife, and fork in a particular order before being able to eat, eating according to a strict ritual, not being able to eat until the hand of the clock point exactly to a certain time.
    Example: Not taking a bus or train if its number contains an "unlucky" number (like thirteen), staying in your house on the thirteenth of the month, throwing away clothes you wore while passing a funeral home or cemetery
    Example: Pulling hair from our scalp, eyelids, eyelashes, or pubic areas, using fingers of tweezers. You may produce bald spot that requires you to wear a wig, or you may pluck your eyebrow or eyelids smooth.
    Example: Picking at skin on face or other areas of the body that leads to irritation, bleeding, disfigurement or infection