Find the right food for your pet
Find the right food for your pet
Published On September 01, 2026

Urinary Stress: Why Is My Cat Peeing Outside the Litter Box?

Expert Reviewed

Written By

Dr. Sarah Wooten Dr. Sarah Wooten

Reviewed By

Hill's Veterinary Experts Hill's Veterinary Experts
Black cat stepping out of litter box Paw prints

If your cat is urinating outside the litter box, you're probably concerned and frustrated at the same time. Cat urine is challenging to clean, and inappropriate urination can be a difficult behavior to stop. It helps to learn why it may be happening before you can figure out the right approach for what to do.

Cats urinate outside the litter box for a few reasons. It may be a urinary condition, such as a urethral blockage or kidney stones, that affects their ability to pass urine. Certain medical issues can also cause physical difficulty getting inside the litter box, such as arthritis or a neurological disease. Or your cat may stop using the litter box if it isn’t cleaned regularly.

When you notice a urinary issue, it's important to connect with your veterinarian as soon as possible. Some conditions are a true emergency and can quickly become life-threatening.

Help your cat by learning the signs of urinary distress, potential causes and how to manage the underlying condition or behavior.

kitten peeking out from a basket

Signs Your Cat May Have a Urinary Issue

One of the most obvious signs your cat has a urinary issue is not using the litter box. If this is the case, gather as many useful details as you can to help your vet understand the cause, such as where your cat is urinating, what the urine is like and what other behaviors your cat has.

Where It's Happening: Spraying Versus Inappropriate Urination

Sometimes, urinating outside the litter box can be confused with a behavior called spraying. Urine spraying more often occurs on vertical surfaces, such as walls and furniture, while inappropriate urination happens on the floor, carpet or other horizontal surface. These conditions have different causes, so noting the locations of inappropriate urination can help get your cat the right care. A vet can help with medical issues as well as behavioral urination.

What the Urine Is Like: Appearance & Smell

Bloody urine or urine with a strong odor are reasons to contact your vet. These can indicate a urinary issue that needs immediate attention.

However, it's also possible your cat can have a urinary issue even if their urine seems normal, other than being outside the litter box. Also consider your cat's other behaviors.

What Your Cat Is Doing: Symptoms to Consider

If you notice these behaviors along with your cat urinating outside the litter box, contact your vet as soon as possible:

  • Spending more time in the litter box

  • Making frequent trips to the litter box

  • Straining to urinate with little or no urine coming out

  • Licking below the base of the tail

  • Crying or howling during urination attempts

  • Vomiting

  • Excessive thirst

  • Loss of appetite

  • Hiding

  • Increased aggression

  • Discomfort when being picked up or touched on the belly

Any time your cat seems to be in pain or distress, it's wise to check with your vet or take your cat in for prompt evaluation.

In particular, if your male cat is straining to urinate or showing other signs of a urinary issue, consult your vet or an emergency animal hospital as soon as possible.1 Male cats are at higher

Veterinarian wearing blue gloves examining a tabby cat on the examination table

Causes of Inappropriate Urination in Cats

Cats may urinate inappropriately because of litter box preferences or spraying, but there may be medical causes or stress. Your vet is your best source for guidance and diagnosis of urinary issues. 

At your appointment, your vet will ask you questions about your cat's health and home environment and conduct a full physical exam. They may also order laboratory tests as necessary, such as urine tests, blood tests and imaging tests like radiographs (X-rays) or an abdominal ultrasound.2 Any further testing or treatment will depend on the results of those initial tests.

Medical Conditions Linked to Feline Urinary Issues

Some of the conditions that can cause inappropriate urination in cats include3,4:

Stress and Feline Urinary Issues

Stress is another potential cause of cat bladder and urination issues. Cats can develop a maladaptive stress response, resulting in abnormal litter box behaviors. This is called feline interstitial cystitis, or feline idiopathic cystitis (FIC). FIC is part of a larger systemic disorder called Pandora syndrome, which results from exposure to stress.5

FIC is generally seen in young or middle-aged cats of both sexes, but it can cause more severe issues in males.4 The condition is a diagnosis of exclusion, meaning your vet will rule out all other causes first. FIC isn't curable, but it can be managed with nutrition management (including therapeutic food), pain medication and modifications to your cat's environment to minimize stress.6

What to Do About Inappropriate Elimination & Other Urinary Issues

Most urinary concerns require veterinary intervention. In general, here are some ways you can support healthy urinary habits at home:

Scoop Daily & Provide Enough Litter Boxes

Scoop your cat's litter box every day. Provide one more litter box than the number of cats in your home, and place them in different locations throughout the house.

Encourage Hydration

Set up multiple water stations in the home and use a cat water fountain, which can entice some cats to drink more and encourage healthy hydration. Feeding with canned food can also increase water intake.

Follow Nutritional Recommendations

Follow your vet's nutritional recommendations, such as feeding your cat therapeutic food designed for urinary disorders.

Reduce Boredom & Stress

Boredom can also cause stress in cats, which may increase their risk of urinary issues. Play with your cat every day — four to five short (15-minute) play sessions are best. You can also encourage mental stimulation by providing puzzle feeders, interactive toys and window perches.

Talk to Your Vet About Nutrition

When it comes to how to stop inappropriate cat urination, getting your cat the diagnosis and veterinary care they need is key. For many feline urinary conditions, nutrition is a large part of the standard of care. Targeted nutrition can help reduce the risk of future episodes. For example, some urinary health cat foods moderate your cat's intake of specific minerals that can cause urinary crystals to form. Others are formulated to help reduce stress.

Talk with your vet about the nutrition options that are best for your cat's urinary issues. Together, you can support your cat's well-being and get them on track to living their best life.

Frequently Asked Questions

A sudden change in litter box behavior often signals a medical issue. Stress-related conditions like feline idiopathic cystitis (FIC), urinary tract infections, bladder stones and even diabetes can cause cats to urinate outside the box. Changes in the home environment — such as moving, new household members or a dirty litter box — can also trigger the behavior. Schedule a vet appointment promptly to identify the cause.

No. Cats do not urinate outside the litter box to punish or get revenge on their pet parents. Inappropriate urination is almost always a sign of an underlying medical condition, stress or a problem with the litter box itself. Punishing your cat for this behavior will increase their stress and can make the problem worse.

Urine spraying typically occurs on vertical surfaces like walls and furniture, while inappropriate urination happens on horizontal surfaces like floors and carpets. Cats who are spraying usually stand with their tail upright and quivering, backing up to the surface. These two behaviors often have different underlying causes, so distinguishing between them helps your veterinarian determine the right course of action.

If your cat — especially a male cat — is straining to urinate, crying in the litter box or producing no urine at all, seek emergency veterinary care immediately. Urethral blockage is a life-threatening condition that can escalate to fatality within as little as 24-48 hours without treatment.

References

1 Lauren Bryan. "Blocked Cats: An Emergency for Male Cats." University of Illinois College of Veterinary Medicine. Published July 10, 2025. https://vetmed.illinois.edu/pet-health-columns/blocked-cats-an-emergency-for-male-cats/

2 Sherry Lynn Sanderson. "Detecting Disorders of the Kidneys and Urinary Tract of Cats." Merck Veterinary Manual Pet Owner Version. Last modified September 2024. https://www.merckvetmanual.com/cat-owners/kidney-and-urinary-tract-disorders-of-cats/detecting-disorders-of-the-kidneys-and-urinary-tract-of-cats.

3 Wendy Brooks. "Inappropriate Elimination (House Soiling) in Cats." Veterinary Partner. Last revised February 24, 2024. https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4951508&f5=1.

4 Samantha Taylor, Søren Boysen, Tony Buffington, et al. "2025 iCatCare Consensus Guidelines on the Diagnosis and Management of Lower Urinary Tract Diseases in Cats." Journal of Feline Medicine and Surgery. February 11, 2025. https://doi.org/10.1177/1098612X241309176.

5 Lisa Restine. "Identifying and Treating Pandora Syndrome." Veterinary Practice News. Published April 11, 2025. https://www.veterinarypracticenews.com/feline-pandora-syndrome/

6 Wendy Brooks. "Idiopathic Cystitis in Cats." Veterinary Partner. Last revised October 21, 2024. https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4951488&f5=1

Dr. Sarah Wooten Dr. Sarah Wooten
Dr. Sarah Wooten

Dr. Sarah Wooten graduated from UC Davis School of Veterinary Medicine in 2002. A member of the American Society of Veterinary Journalists, Dr. Wooten divides her professional time between small animal practice in Greeley, Colorado, public speaking on associate issues, leadership, and client communication, and writing. She enjoys camping with her family, skiing, SCUBA, and participating in triathlons.

Related products

Adult Turkey & Liver Entrée Cat Food

Precisely balanced nutrition with the delicious taste of finely minced turkey & liver to help fuel the energy needs of cats during the prime of their life
Kitten Tender Chicken Dinner Cat Food

Delectable chunks with tender chicken smothered in a rich gravy
Adult 7+ Indoor Chicken Recipe Cat Food

Supports energy level and beautiful fur in mature indoor cats
Senior Vitality Adult 7+ Tuna & Vegetables Stew Packshot
Senior Vitality Adult 7+ Tuna & Vegetables Stew

Improves Everyday Ability to Get Up & Go

Related articles

Gray cat with green eyes laying on wood floor
Helping Your Cat Lose Weight: Cat Foods for Weight Loss and Exercise Tips

How do you get a cat to lose weight? Learn all about cat foods for weight loss, including how to choose weight control cat food and exercise tips.
Fun Games for Exercising Your Cat | Hill's Pet

Discover which cat toys games your feline friend might like, and how they are great sources of exercise. Explore our library of articles to learn more.
A kitten stands in a litter box
How to Litter Train a Kitten

Learn how to litter train a kitten with this guide to potty training, including when to start litter training kittens and troubleshooting tips.
Helping a Cat with Sensitive Skin

Discover how to identify cat sensitive skin and what you can do to help your cat thrive from head to paw.
Cat licking mouth

Put your cat on a diet without them knowing

Our low calorie formula helps you control your cat's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.

Put your cat on a diet without them knowing

Our low calorie formula helps you control your cat's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.