Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Does My Cat Keep Going to Their Litterbox (But Nothing Happens)? Vet Approved Advice

orange cat beside litter box

Over 37% of households in the United States have invited a cat into their homes; that is over 45 million households! About 63% keep their pets indoors exclusively. That’s a good thing, too, since it gives owners a heads-up if something is wrong, such as unusual litter box behaviors. Cats are creatures of habit. They also have distinct preferences for cleanliness, litter type, and the number of boxes.

The causes of litter box issues are often either behavioral or medical in origin. While the former may not seem as serious, they are nevertheless unsettling. Unfortunately, these problems can increase a pet’s chances of being given up over four times if it’s a weekly occurrence. The latter type can become serious if left untreated.

Straining and failure to eliminate require a physical examination and tests to determine the cause and course of treatment. Many also make a pet vulnerable to a recurrence. Whatever the cause, it’s vital to determine why your cat is having problems using its litterbox, no matter what the reason.

divider cat paws 2 oct 2024

Types of Litter Box Issues

Elimination problems are serious and often require veterinary intervention. We’ll begin by clarifying the issue types to help you take the appropriate next steps. A cat may go to its litterbox and not use it. It may be something as simple as it is too long between maintenance sessions. If you’ve changed the kind of litter you buy, your pet may refuse to use it if the texture is different or it has a strong scent.

The problem may also occur because your cat can’t use it, whether it’s too deep or too small. If your kitty is arthritic, it may not be able to climb inside a box with tall sides. The same thing may occur if you replace the existing one with a box that has a hood or a top entry. Cats don’t like changes to their routine and might avoid using a litter box to express their displeasure.

Having more than one pet in the house often means more than one litter box. You’ve probably noticed the social hierarchy at work if you have two or more cats. It’s usually best resolved with one box per animal plus one additional one.

maine coon cat standing on top of litter box
Image Credit: Nils Jacobi, Shutterstock

divider 1 paws

The 7 Medical Reasons Your Cat Goes to the Litter Box But Nothing Happens

Cats are notorious for hiding medical conditions until they can’t keep them from you any longer. It’s a survival instinct not to show their vulnerability. You may learn that your kitty has been ill for a while before the signs become apparent.

1. Urinary Tract Infection (UTI)

Urinary tract infections (UTIs) are bacterial conditions treated with antibiotics. They occur when pathogens invade the usually sterile environment of your cat’s urinary system. UTIs are as painful in pets as they are in people. Typical signs include:

  • Straining to urinate
  • Small amounts of passed urine
  • Inappropriate elimination
  • Blood in your pet’s urine

Prevention is the best way to avoid future issues. That means scooping the litter box daily and providing fresh litter as needed. We also suggest emptying it completely at least every two weeks and thoroughly cleaning it. While cats get most of their moisture from their food, you should always provide fresh water daily.

cat pee on carpet
Image Credit: New Africa, Shutterstock

2. Feline Lower Urinary Tract Disease (FLUTD)

Feline lower urinary tract disease (FLUTD) is a catchall term that describes several conditions that vary in severity and causes. Signs, such as the inability to void urine in the litter box, are common with many of these disorders and not pathognomonic (indicative of one specific disease). Your veterinarian will typically start with a urinalysis and perhaps bloodwork to rule out various possible causes of the problem. Treatment depends on these findings.


3. Feline Idiopathic Cystitis (FIC)

The term idiopathic means a condition that either has an unknown cause or is peculiar to an individual. Cystitis describes inflammation of the bladder. FIC is sometimes challenging to treat since environmental factors like stress may play a role in its development. Avoiding abrupt routine changes, including the type of litter you buy, can make your pet feel more comfortable and less anxious.

If you’re concerned about your pet’s well-being, we recommend you contact a veterinarian.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money


4. Urinary Stones

Urinary stones (or uroliths) are crystal mineral deposits that can form in your pet’s urinary tract. The two most common types are calcium oxalate and struvite stones. The latter consists of chemicals, such as ammonia, phosphorus, or magnesium. They can irritate the urinary tract and set the stage for secondary bacterial infections. As you may surmise, it is a painful condition that may require emergency treatment.

Special diets can reduce the formation of struvites and help prevent recurrences. It’s worth mentioning that some plants, such as philodendron, contain calcium oxalate, too. Ingestion can cause oral irritation.


5. Urethral Obstruction

Uroliths or urethral plugs can cause an obstruction and interfere with urination, most often seen in male cats. A cat with this condition will show similar signs, such as going to the litter box often and straining when urinating. An obstruction requires immediate medical attention. It can affect kidney function and may cause severe electrolyte imbalances.

pouring cat litter
Image Credit: EvGavrilov, Shutterstock

6. Constipation

Constipation can occur if your pet frequently eats hard materials such as animal bones. Cats typically don’t drink a lot of water since they get most of the necessary moisture through their food. Nevertheless, it’s imperative to have fresh water available for your kitty at all times. Offering your pet a high-fiber diet can also prevent recurrences.


7. Intestinal Obstruction

An intestinal obstruction occurs if your cat eats something indigestible, causing a blockage. The condition is often painful. Your usually affectionate pet may become aggressive. It may hide, which is always a red flag for felines. Among other signs, your cat may become lethargic, vomit repeatedly, refuse to eat, or have trouble defecating. As with urethral obstructions, intestinal obstructions due to foreign body ingestion signify a medical emergency.

divider 3 paws

Summary

Litterbox issues can have behavioral causes. After all, cats have preferences, too. While you can correct some with simple modifications, some medical conditions can induce inappropriate urination. We strongly urge you to contact your vet if you notice your kitty having any difficulties using the box. Prompt action can help prevent it from becoming more serious and potentially life-threatening.


Featured Image Credit: jamesjoong, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Won’t My Cat’s UTI Go Away? 6 Possible Causes (Vet Answer)

Your cat urinated outside the litter box, so you took them to the veterinarian. Your vet diagnosed them with a urinary tract infection...

black and white cat peeing outdoor

6 Health Risks of Keeping a Dirty Litter Box: Vet-Approved Sickness Signs

Cleaning the litter box is one of the most laborious (not to mention smelly) tasks a cat owner must do every day, so...

woman cleaning cat litter

Why Can’t My Cat Pee? 6 Possible Reasons (Vet Answer)

Your cat heads to the litter box and cries out rather than urinating. You check the litter box and can’t find evidence that...

cat looking at the litter box

Cat Urinary System: Vet-Verified Health Guide (With Diagram)

Cats’ urinary systems remove waste products, ensure proper electrolyte balance, and help with vitamin D processing. The urinary system has several organs, including...

cat coming out of a litter box

More related

A cat with an emergency first aid kit.

When to Call an Emergency Vet & How to Find One for Your Cat – Vet-Approved Advice & Guidance

Cats are great at masking pain, which makes it more difficult for kitty parents to identify what’s an emergency and what’s not, particularly...

black and white cat peeing outdoor

Why Won’t My Cat’s UTI Go Away? 6 Possible Causes (Vet Answer)

Your cat urinated outside the litter box, so you took them to the veterinarian. Your vet diagnosed them with a urinary tract infection...

Cat Spraying vs Peeing: Vet-Verified Differences

Dealing with your cat peeing inappropriately in your home can be exceedingly frustrating. Many cat owners don’t realize there’s a difference between your...

orange cat beside litter box

8 Common Litter Box Issues & How to Fix Them

It’s a common myth that cats always use their litter boxes without issue. For the most part, cats indeed learn to use a...

Keep reading

Feline Upper Respiratory Infection: Vet Reviewed Causes, Signs & Care

Respiratory infections are unfortunately pretty common in cats, but are they something your cat will get over, or do you need to take them in to see the vet? And what about secondary illnesses? We’ll take a closer look at...

A cat having a check-up at a small animal vet clinic

6 Tuna Popsicle Recipes for Cats You Can Make Today (Vet Verified)

Many of us turn to frozen treats to escape the summer heat. However, most ice cream and popsicles contain ingredients that aren’t safe for cats to eat. Fortunately, your cat can enjoy their own versions of popsicles that will also...

Tuna Popsicle Recipes for Cats You Can Make Today

Why Does My Cat Bite My Nose? 6 Possible Reasons & Vet-Approved Tips

Our cats communicate with us in all sorts of ways. Some ways are comical, others are challenging, and still others are second nature and expected. However, what if your cat has an odd quirk and the message is unclear? If...

Female hugging her cute long hair kitty

Are Zebra Plants (Haworthia) Poisonous to Cats? Vet-Reviewed Houseplants Examined

Haworthia plants—also known as “zebra plants”—are stylish, easy-to-care-for houseplants popular with beginners and long-time plant lovers alike. If you have cats, it’s normal to want to get the lowdown on which plants may be harmful to them. Fortunately, Haworthias are...

Catster_Are Zebra Plants Poisonous to Cats

Is Lidocaine Safe For Cats? Our Vet Discusses Safety & Risks

Even though cats typically aren’t as vocal or outwardly expressive of their pain as canines, they do still experience pain, leading veterinarians to look for safe and effective pain management medications. One that you may be wondering about is lidocaine....

Catster_Is Lidocaine Safe for Cats

Why Is My Cat Licking the Carpet? 5 Vet-Reviewed Reasons

If you have a cat, you’ll already know how quirky and unpredictable they can be. Unfortunately, when our cats have something going on, they can’t tell us. It’s up to us to work it out, and it can be challenging,...

cat licking carpet_cottonbro-studio_pexels

Does Pine Sol Kill Fleas on Cats? Vet-Reviewed Effectiveness & Safety Explored

Pine-Sol is a well-known cleaning product for kitchen and bathroom floors. There is some information surrounding the product and how it may affect fleas on cats, but we can confidently say that Pine Sol does not kill fleas on cats....

Cat wearing collar scratching and itching

Why Did My Kitten Throw Up? 7 Vet-Reviewed Reasons

If you have a kitten, you’ve most likely experienced waking up in the middle of the night to the sound of your little darling gagging and retching. While all cats are known to vomit occasionally, it gets worrisome trying to...

British Chinchilla kitten throwing up