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Why Does My Cat Poop Outside the Litter Box: 7 Vet-Verified Causes & Ways to Stop It

cat pooping outside the litter box

VET APPROVED

Dr. Marta Vidal-Abarca Photo

REVIEWED & FACT-CHECKED BY

Dr. Marta Vidal-Abarca

Veterinarian, BVSc GPCert (Ophthal) MRCVS

The information is current and up-to-date in accordance with the latest veterinarian research.

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Cats can develop inappropriate elimination or litter box issues due to medical or behavioral problems. If your cat is not using their litter box like they usually do, it is cause for concern. You don’t want your cat to develop long-term litter box avoidance problems, so it is crucial to understand the root cause of these behaviors so that they can be corrected. Instead of using their litter box, your cat may start to poop or urinate on the floor, furniture, bedding, or rugs.

This can cause a new habit to form and become a daunting task for you to clean up. This article will give you a rundown of the most common reasons for a cat to be defecating outside of the litter box.

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The 7 Reasons Why Your Cat Poop Outside the Litter Box

1. Dirty Litter Box Conditions

Cats are hygienic animals and typically refuse to use a dirty litter box that has not been cleaned. Your cat has a sensitive nose and can easily detect undesirable smells in their litter box.

The litter box can also foul quickly if multiple cats use the same one and it is not cleaned regularly. If you do not stick to a cleaning routine and ensure that your cat’s litter box always smells fresh, your cat may choose to use the bathroom elsewhere.

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2. Negative Litter Box Association

Cats who have had a negative experience using litter boxes may feel too stressed to use them again. This can happen for several reasons, such as your cat experiencing a disturbance while using the litter box or becoming injured.

They will associate this event with using the litter box and then avoid it to prevent the problem from happening again. Your cat is vulnerable when using the litter box, so any discomfort or negative experiences can cause them to become fearful of using the litter box again.


3. Digestive Problems

Gastrointestinal issues like constipation or diarrhea can lead to your cat pooping outside the litter box. When defecation becomes uncomfortable or urgent, your cat may avoid the box altogether, especially if it’s in a hard-to-reach spot that requires effort to access. These health problems can seriously impact your cat’s well-being and often worsen if left untreated, so be sure to consult your veterinarian promptly if you suspect a digestive issue.


4. Scent Marking

When scent marking, cats typically spray urine on a vertical object, such as a wall or piece of furniture. However, cats can also scent-mark by depositing fecal matter on a surface.

Several factors can contribute to your cat urinating or pooping outside of the litter box, so it is important to determine the reason your cat is displaying this behavior so it can be resolved.


5. Stress

Environmental stressors can cause your cat to avoid using the litter box and poop in abnormal areas of the household. Stressors can include changes in the family’s routine, moving, traveling, or adding new pets.

Cats are highly sensitive animals, so certain disruptions to their lives and routines, even if minor, can cause them to feel stressed and, in return, act abnormally. In most cases, it is a matter of time before things return to normal. However, you should seek vet advice if the behavior persists.

cat poop on the carpet
Image Credit: schankz, Shutterstock

6. Multi-Cat Household Conflict

If you have several cats and not enough litter boxes to accommodate each one, some cats might control the litter box and not let other cats have access to it. This causes stress and confusion in the cats and an unhygienic litter box.

In this situation, it’s essential to have multiple litter boxes around the house in different areas so each cat does not have to fight or wait for another one to use the litter box. The typical rule of thumb is one litter box per cat plus one extra.


7. Location Preferences

Some cats can become picky about the type of litter box they are using or the area and surface where the litter box is placed. Your cat may avoid using the litter box in a location that they do not like, such as a busy area near a window or a door, where there is no privacy, or outdoor cats could be bothering them.

If the surrounding area is unsanitary or in disarray, your cat may urinate or poop outside of the litter box because they do not feel comfortable using the litter box in the specific location it is placed. It is best to place the litter box in a quiet area, such as a bathroom or office, that people do not use much so that your cat can feel safer when doing their business.

maine coon on top entry litter box
Image By: Nils Jacobi, Shutterstock

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Conclusion

These litter box-related issues can usually be resolved after you have identified the most likely reason for your cat to be pooping outside of the litter box. Some reasons may require the help of a veterinary professional, gentle guidance, or positive reinforcement.

It is important not to punish your cat when they defecate outside of the litter box, as it will only cause them to feel more distressed and guilty about their behavior. Instead, look for methods to combat the issue in the least stressful manner.

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Featured Image Credit: Tanya Plotnikova, Shutterstock

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