10 Reasons Cats Poop Outside Their Litter Box & How To Resolve The Issue
  • Post category:Behavior
  • Post comments:0 Comments
  • Post author:
  • Post published:13/04/2021
  • Post last modified:13/04/2021

Cats instinctively prefer to bury their waste, so the litter box should be their favorite place in your home to take care of business. Unfortunately, cats have delicate sensibilities and there are a variety of factors that can cause them to avoid certain areas or objects.

If your kitty is leaving stinky presents outside of his or her litter box, consider the following ten possible causes for the behavior.

Note: If your cat is also urinating outside of the litter box, having trouble producing urine or stool, crying in the box, or showing additional signs of distress, seek veterinary attention right away. These symptoms could indicate a life-threatening urinary blockage or other serious medical issue. 

1. The litter box is too small.

A standard rule of thumb is to choose a litter box one-and-a-half times your cat’s body length. If your kitty has experienced a growth spurt or put on some weight, it may be awkward or uncomfortable to use her current box. Along the same lines, the box may be too shallow or not filled with enough litter to adequately satisfy her dig-and-bury instinct.


2. The box is difficult for your cat to access due to pain or physical limitations.

Many senior or disabled cats defecate outside their litter box because of its size, depth or location. Joint pain and arthritis often occur in aging cats, and climbing in and out of deep or covered litter boxes may become increasingly difficult. It is also a good idea to ensure that your senior kitty has a litter box on the level of your home where she spends the majority of her time so she can avoid difficult stairs.

3. The box is offensive to your cat’s senses.

Cats are finicky critters and their aversion to a specific object often has to do with a sensation they find unappealing. Have you placed a new mat beneath the box or started using plastic liners? Kitties generally spend about 20 seconds pawing around in the litter box. If your cat is in a hurry to hang over the edge, do her business and skedaddle, there may be a tactile reason.

4. Your cat does not like the location of the box.

Nobody wants to have their cat’s litter box in the middle of their living room, but many of the tucked-away spots in our homes come with scary sights, sounds and smells. It may be too warm by the furnace or the noisy appliances in the laundry room may be frightening. Similarly, boxes placed near doors may lead to disturbances as people enter and exit. Many cats also refuse to use a box that is placed in close proximity to their food and water. (Check out the best and worst spots in your home for your cat’s litter box for more tips.)

Image Credit: Flickr/doggo

5. The box is too stinky or dirty.

This one may seem like a no-brainer, but for some cats “too dirty” could mean a single dab of urine in an otherwise spotless box. Some finicky felines are so prim and proper that only pristine litter will do!

6. Another pet is “guarding” the box.

Multi-pet households could result in bullying. While some cats guard the food bowl, others act as bouncers outside their favorite potty spot. Make sure a particularly dominant cat – or dog – is not preventing a more timid kitty from accessing the box.

Image Credit: Flickr/liz west


7. There are not enough litter boxes in the home.

Another general rule of thumb to follow is one litter box for each cat in the household plus one extra for good measure. Be sure to place them in different, easily accessible spots throughout the house including at least one box per floor in multi-level homes.

8. Your cat dislikes your litter choice.

Cats tend to prefer finely ground litter granules and some may have aversions to scented or highly dusty products. Once you find a litter both you and your cat can agree on, stick with it!

9. Your cat has had a painful or frightening experience involving the litter box.

Has your cat suffered from constipation or diarrhea recently? Did something startle her while she was doing her business? It could be that an unpleasant incident has caused her to associate her litter box with pain or fear and she is now avoiding it.

Image Credit: Flickr/LWYang


10. Your cat has a health problem.

In addition to painful aging changes, many medical conditions could cause your kitty to defecate outside of her box. She could be experiencing pain or fatigue that makes it difficult for her to make her way to the box or climb inside. If you suspect this may be the case, schedule an appointment with your veterinarian.

(Note: to help detect health issues inside the litter box, check out the litter that changes colors by reacting to your cat’s urine.)

Image Credit: Flickr/Tom Thai

Tips to help resolve inappropriate pooping:

  1. Clean all litter boxes daily – or twice daily if necessary.
  2. Set up a “litter-lineup” with three or more temporary boxes lined with different brands of litter to determine your cat’s favorite.
  3. Try covered versus uncovered boxes.
  4. Take a closer look at the litter box location.
  5. Clean up inappropriate poop-sites with an enzymatic cleaner to deter your cat from using that spot again.
  6. Deny access to these sites by closing the room off, spraying cat repellant or placing a blockade over the area.
  7. Additionally, you can try placing your cat’s food, bed or litter box over the location to deter her from using it as a “bathroom”.
  8. Consult your veterinarian or an animal behaviorist for additional help if needed.


H/T to Dr. Sophia Yin


Leave a Reply