14 Reasons Your Cat is Peeing Everywhere but Their Litterbox

Cats are fascinating animals that have won the hearts of many pet lovers worldwide. Cats are generally fastidious animals who like to keep themselves clean and tidy, and they instinctively use their litter box to do their business. However, there may be times when your cat starts peeing outside of their litter box, causing a lot of frustration for their owners. While it may seem like an act of defiance or simply a bad habit, there are several underlying reasons why cats might avoid their litter box. In this article, we will explore some of the common reasons why your cat might be peeing everywhere but in their litter box.

Medical Issues

One of the most common reasons for cats to halt using their litter box is due to medical issues. If your cat is experiencing agony or discomfort while urinating, it may start to associate their litter box with that discomfort and seek out other places to go instead.


UTIs are caused by bacterial infections in the bladder or urinary tract, and symptoms include frequent urination, eagerness to urinate, and the presence of blood in the urine that indicates urinary tract signs.

Bladder stones

Bladder stones, which are mineral deposits that develop in the bladder, can cause similar symptoms. In extreme cases, bladder stones may cause obstructions in the urinary tract, which can be life-threatening.

Kidney disease

A more severe condition that impairs the function of the kidneys is renal disease. Frequent urination, increased thirst, and weight loss all are signs of renal illness. If left untreated, kidney disease can lead to kidney failure, which can be fatal.

If your cat exhibits any of these signs or has suddenly started peeing outside the litter box, it’s crucial to take them to a veterinarian for a check-up. The veterinarian will perform a medical assessment, and if required, do blood and urine tests to determine if your cat has an underlying medical issue.

Treatment for urinary medical issues will depend on the specific condition your cat has. UTIs are typically treated with antibiotics, while bladder stones may require surgery to remove them. Kidney disease may require ongoing treatment and management to slow the progression of the disease and improve your cat’s quality of life.

Dirty Litter Box

A dirty litter box can cause a cat to pee outside of their litter box because cats are naturally clean animals and may refrain from using a litter box that is not clean. If the litter box is not cleaned regularly, the scent can become overwhelming, and the litter can become compacted and will bother the cat to use it. This could prompt the cat to look for other places to urinate, such as on the carpet or furniture. Therefore, it is important to scoop the litter box at least once a day and clean it thoroughly once a week to ensure that it is comfortable.

cat peeing outside of litterbox in Palos Heights, IL

Litter Box Location

The location of the litter box can also affect your cat’s behavior. Cats like their litter box to be in a quiet and private location. If the litter box is located in a noisy or high-traffic area, your cat may avoid it altogether. You should also ensure that the litter box is easily accessible, especially for older cats who may have mobility issues.

Stress and Anxiety

Cats are creatures of habit, and any alteration in their routine could cause stress and anxiety. Settling into a new home, getting a new pet, or welcoming a new family member can trigger tensity and consternation in your cat. When your cat is stressed, it may start peeing outside of its litter box. You can reduce your cat’s stress by providing a quiet and relaxed space for them and steadily introducing new changes to their routine.

Separation Anxiety

Cats can develop separation anxiety if they are left alone for a prolonged period of time, particularly not having access to their preferred resources, such as food, water, or a clean litter box. Cats with separation anxiety may reveal a variety of behaviors, including enunciation, destructive behavior, and inappropriate urination or excretion. If your cat is peeing outside of their litter box and you suspect that separation anxiety may be the cause, it’s important to address the issue by providing your cat with enough resources and seek professional help if needed.

Territorial Marking

Cats are territorial animals, and use urine to mark their territory. If you have more than one cat in the household, they may start peeing outside of their litter box to mark their territory. You can reduce this behavior by providing each cat with its own litter box and space.

Inappropriate Litter Box Type

Cats have varied preferences when it comes to litter boxes. Some cats like open litter boxes, while others prefer covered ones. Some cats like specific types of litter boxes, while others may not. If your cat is not using their litter box, try experimenting with different types of litter boxes and litter until you find what works best for them.


As cats age, they may start to experience mobility problems and health issues, making it more challenging for them to utilize the litter box. For instance, arthritis can make it difficult for cats to climb into a litter box with high sides. In this case, you should provide a litter box with lower sides or a ramp to make it easier for them to access the litter box.

Behavioral Issues

In some cases, cats may start to pee outside of the litter box due to behavioral issues. This can be caused by a variety of factors, including anxiety, boredom, or simply a desire for attention. It’s important to work with a veterinarian or animal behaviorist to address these issues and determine the best course of action.

Dirty Environment

Cats are very sensitive to smells and may avoid using their litter box if the surrounding environment is dirty or smells bad. Make sure to clean up any urine or feces promptly and deodorize the area to prevent any lingering odors.

Dirty Paws

Cats use their paws to cover their waste in the litterbox, and if their paws are dirty, they may avoid using the litterbox altogether. Make sure to keep your cat’s paws clean and free of any debris or litter.


There are several reasons why your cat might be peeing everywhere but in their litter box. It could be due to a medical issue, dirty litter box, inappropriate litter box type, stress and anxiety, territorial marking, or aging. However, as a cat owner, it’s essential to identify the cause of the behavior and take appropriate action.

If your cat is peeing outside of their litter box near Palos Heights, IL, reach out to Palos Animal Hospital at (708) 448-6600! We can see what the underlying cause of your cat’s behavior is and help them to start feeling comfortable in the litter box again in no time.