cat defecating outside of his litter box?

Question

I recently acquired a new kitten approximately 2 months ago. Over the past month my old kitty (about 6 yrs) began urinating and defecting all over the house. I've had to isolate him to one room when I'm not home, and he continues to defecate all over that room as well. I know the new kitty is probably the issue, but does anyone know how I can get him to stop?!?!?

Answer 1

Hi Erica...if this is something that recently developed, first consider all the possibilities such as:
- changes with litter brands
- location of the litter box isn't private enough
- some cats like to have one box to defecate and another to urinate
- cleanliness (some cats are very finicky and prefer a super clean box)
- as a general rule there should be one litter box for each cat plus one extra as a back up
- kittens who are over 5-7 months can become sexually mature and urine spray as well as defecate inappropriately to mark territory.
- senior cats develop age-related disorders such as chronic renal failure (CRF), hyperthyroidism, diabetes, etc.

If all these have been ruled out, there's a chance that your cat may have developed another underlying medical problem such as something as simple as a lower urinary tract disorder: http://www.marvistavet.com/html/body_feline_lower_urinary_tract_dis.html which can contribute to accidents outside of the box. Cats will associate pain while using box and change their habits as a result.

Here's an article about why cats inappropriately soil outside their litter box by Cornell University College of Veterinary Medicine: http://www.vet.cornell.edu/fhc/brochures/Housesoiling.html

House soiling is the most common behavior problem reported by cat owners. It includes urination and/or defecation outside the litter box, as well as urine spraying.

Why do cats eliminate outside of the litter box?
One common misconception is that cats soil in inappropriate places for revenge. It is tempting to conclude, "He defecated on the living room carpet to punish me for leaving him for the weekend." But this kind of calculation requires sophisticated cognitive abilities that cats aren't believed to possess. Furthermore, this conclusion assumes that cats view their urine and feces as distasteful, when in fact they do not. It is only we humans who view it that way.

Medical Problems
So why do cats urinate or defecate on your bed or carpet? Medical problems are one possibility. Inflammation of the urinary tract may cause painful or frequent urination, inability to urinate, bloody urine, and crying during urination. An affected cat is likely to eliminate outside the litter box if he comes to associate the box with painful urination, or if he has an increased urgency to urinate. In addition, kidney, liver, and thyroid diseases often lead to increased drinking and urination. Inflammation of the colon or rectum, intestinal tract tumors, intestinal parasites, and other gastrointestinal conditions may cause painful defecation, increased frequency or urgency to defecate, and decreased control of defecation. Age-related diseases that interfere with a cat's mobility (for example, arthritis, nervous system disorders, or muscular diseases), or with his cognitive functions can also influence his ability to get to the litter box in time. In short, any medical condition that interferes with a cat's normal elimination behavior can lead to house soiling.

Litter Box Aversions
Behavioral problems, such as litter box aversions, inappropriate site preferences, or urine spraying can also lead to house soiling. An aversion implies that there is something about the litter box that your cat finds unsavory. It could be the box, the litter, the location of the box, or all three.

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Answer 2

There's not much you can do. He just has to get used to the new kitten. Cats urinate and defecate outside their litterbox when they're mad at you or when there's been a change in environment. Best thing you can do is actually not to isolate him in a seperate room, but allow him to get acquainted with the new kitten and give him lots of love and attention. In time, he'll start using the litterbox again.

Answer 3

he is probably marking his dominance over the kitten, maybe you need to clean the litter box more regularly or change the brand of litter you use

Answer 4

Has he been neutered? If not, he is defending his territory and spraying.
Talk to your vet and see what your options are.

Answer 5

he is probably fecally incontinent and can not make it to the litter box in time, please do not allow him to listen to radio bam that show is not for your grandma or the fecally incontinent