Feline Inappropriate Elimination
Feline inappropriate elimination is the most common behavioral
problem in cats. Approximately one third of cats house soil,
urine spray, or mark. House soiling with urine may be
differentiated from urine spraying by the amount of urine that
is released, and where the surface of elimination occurs.
House soiling consists of a complete voiding of the cat's
bladder on horizontal surfaces resulting in a large puddle.
House soiling may be accompanied by defecation in inappropriate
locations.
Urine spraying consists of small amounts of urine at a time and
is usually on vertical objects.
Urine marking on human smell is the exception to the above,
consisting of complete urination usually in areas associated
with human body odor, i.e. beds, dirty linens, bath mats, etc.
Cats rarely mark with feces.
House Soiling
House soiling may occur for a variety of reasons. House soiling
is usually associated with a "litterbox" problem or medical
disease. Cats may have developed an aversion to the type of
litter, type of box, the location of the litterbox, or litterbox
odor.
Some cats develop a surface preference, for example carpet, or a
location preference. Medical diseases that increase thirst and
increase urination can manifest as house soiling. A medical
workup is always indicated in cases of house soiling. Minimum
diagnostic workup should include a FeLV/FIV test, CBC, General
Chemistry, and UA with culture and sensitivity.
Treatment of house soiling
Addressing litterbox problems
The goal of addressing litterbox problems is to make the box as
attractive and easily accessible as possible.
The number of litterboxes should be 1 + the number of cats in
the household.
Litterboxes should be in easily accessible, high traffic,
lived-in areas.
Many cats don't like covered boxes. Try to offer a large, open
box.
Litterboxes need to be scooped daily.
Use a premium, unscented clumpable litter. Stick with one brand.
Cats tend to prefer fine substrate.
Clean the litterbox with warm water only. Some cats find citrus,
pine, or lemon scented detergents aversive. Do this at least
monthly.
Do not use litterbox liners.
Do not use any form of punishment is the cat eliminates outside
of the box.
Clean soiled areas and make those areas aversive
The smell of soiled areas attracts the cats to eliminate in
these areas again. Enzymatic cleaners are the most effective in
eliminating odor from soiled areas. Soiled areas should be
blotted up, or cleaned with warm water, and then with enzymatic
cleaners, paying special attention to both horizontal and
vertical surfaces. Equalizer and Anti-icky-poo are two enzymatic
cleaners that are recommended. Most cats find mothball crystals
aversive. Make soiled areas aversive by applying a