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.

Urinary Blockage in Cats: Causes, Symptoms, and Care (Vet Answer)

Share

Cat near litter box_New Africa_Shutterstock

Urinary blockages in cats are one of the most serious medical issues that cat owners and veterinarians alike must deal with. True blockages represent emergencies, as a blockage can quickly lead to electrolyte imbalances that can cause serious consequences, such as changes to heart rate, toxin buildup within the body, and death, if not treated in a timely manner.

Learning to recognize the symptoms of a urinary blockage is critical if you own a cat. Blockages are often most common in younger male cats, though rarely, older males can experience a blockage as well. Females are less susceptible to blockages, as their urethra is larger in diameter.

Causes of blockages can vary from crystals, to spasms, to urinary stones. Care of a blockage always warrants a veterinary visit, sometimes emergent. Read on to learn more about urinary blockages in cats, preventative care, and what to do to help your cat in the event that they experience one.

divider 3 paws

What Are the Causes of Urinary Blockages in Cats?

orange cat beside litter box
Image By: jamesjoong, Shutterstock

Urinary blockages in cats occur when the urethra, which allows urine to flow from the bladder to the outside of the body, becomes blocked. Typically, this involves a physical obstruction, such as by stones or crystals, but it can also be functional, due to a spasm of the urethra.

Typical crystals include calcium oxalate and struvite crystals. Sometimes, these are found in a mucus plug.

Stones are often comprised of the same minerals in cats. Data remains inconclusive as to the underlying cause of stones, although diet—including types, moisture content, and ingredients—have all been suggested at possibly playing a role.

Where Are Signs of Urinary Blockages in Cats?

Signs of urinary blockages can vary, depending on the length of time the blockage has occurred, and whether it is partially or fully obstructing. They can impact almost any organ system, and can include the following:

  • Difficulty walking, including bumping into things or seeming uncoordinated
  • Lethargy
  • Anorexia
  • Vomiting
  • Straining to urinate
  • Not producing urine
  • Vocalizing in the litter box
  • Collapse
  • Fast or slow heart rate
  • Panting
  • Vocalizing when picked up
  • Abdominal pain
  • Drooling
  • Fast breathing
  • Blood in the urine
  • Urine outside the box
  • Small amounts of urine

What Are the Potential Dangers of Urinary Blockages in Cats?

Once a blockage occurs, elements of normal metabolism that the body typically excretes through urination, including potassium, creatinine, and urea, begin to build up. These can create toxicities, leading to dysfunction of various organ systems, lethargy, and if not resolved quickly, even death.

divider 1 paws

Frequently Asked Questions (FAQs)

Are male and female cats equally affected?

Generally not. Most cases of urinary blockages tend to be with male cats. Often these are young males, as well, which is hypothesized to occur due to the better function of the kidneys in younger cats.

Female cats have a larger diameter urethra, therefore, they are less prone to blockages. Their urethra also has a shorter distance, and runs a more straightforward path.

What should I do if I suspect my cat might have a urinary blockage?

If you suspect your cat might have a urinary blockage, contact your veterinarian immediately. This is truly an emergency situation in many cases, and urgent veterinary guidance is critical.

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

How is a urinary blockage in cats diagnosed?

A physical exam will always be the first order of business. Secondary measures often include bloodwork to measure various electrolytes and blood chemistries, electrocardiograms (if there are concerns about the heart), and sometimes, x-rays of the abdomen and ultrasound scans of the bladder. Often, the feel of a cat’s bladder and their general presenting signs can give a good indication of whether or not they might be blocked.

What are the treatment options for urinary blockages in cats?

Treatment will depend on how sick the cat is, and how long the blockage has been going on. In severe cases, cats will need hospitalization and intensive care, sometimes for a few days, or longer. In less severe cases, simply removing or resolving the blockage, while under sedation or anesthesia, may be enough.

Treatment can include medications to stabilize any electrolyte changes, medications to help with nausea, pain relievers, and IV fluids to help flush the urinary system and body of toxins. This is one of the more complicated feline diseases to treat, and requires frequent and close monitoring.

divider 1 paws

Conclusion

Urinary blockages in cats are not to be taken lightly, as they can cause severe illness, and even death if not treated in a prompt and appropriate manner. Therefore, any cat with a suspected urinary blockage should immediately receive medical attention for further evaluation of their concerns.


Featured Image Credit: New Africa, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




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.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Chatting About the Rainbow Bridge, Euthanasia, and Laughter During Grief | Chatty Cattys, Episode 24

If you’ve ever felt the loss of a beloved cat, or are dreading the day when your pet crosses the rainbow bridge, you’ll...

The Simple Reasons Cats Refuse to Let Anyone Use the Bathroom Alone

Cats have an extraordinary talent for making themselves present in the most inconvenient places, and the bathroom ranks near the top of the...

A Paw-sitive Milestone: Canada Officially Becomes a Declaw-Free Nation

Canada has officially become a declaw-free nation. On May 25, 2026, a new regulation was filed in Ontario under the Provincial Animal Welfare...

The Surprisingly Simple Ways to Help a Cat With Hairballs

Cats spend an astonishing amount of time grooming. It is part hygiene routine, part comfort ritual, and part instinct that traces back generations....

More related

Do Ragdoll Cats Need a Companion? Vet-Verified Facts & Info

Known for their fluffy fur, sparkling blue eyes, and lovable personalities, Ragdoll cats are excellent companions that make them the perfect family cat....

Giardia in Cats: Causes, Signs & Care (Vet-Approved Facts & FAQ)

One of the most distressing experiences as a cat parent is suspecting or learning that your cat is unwell in some way. To...

How to Introduce a Hyper Dog to a Kitten: Vet-Reviewed Step-by-Step Guide

Having a family full of furry friends can be a lot of fun if all the required precautions have been considered. When you...

Purina Beyond Cat Food Review in 2026: Recalls, Pros & Cons

Review Summary Purina Beyond is a pet food line from the familiar name Purina. Purina has been making pet food for nearly a...

Keep reading

Pros & Cons of Using Cat Diapers: Is It Right for Your Cat? Vet-Reviewed Info

There are a few reasons that a cat can wind up needing to wear a diaper, from having incontinence to spraying or from other medical or behavioral issues. In such circumstances, a cat diaper might be necessary. The type of...

black-cat-wearing-diapers

Can Cats Eat Mango? Vet Reviewed Nutrition Facts & Safety Guide

Mango is a delicious, nutritious superfood—at least for humans. But what about cats? Maybe your kitty is curious about anything that you eat, or perhaps you just want to add variety to your pet’s diet. Either way, mango is safe...

Can Cats Eat Mango

What Houseplants Are Poisonous to Cats? 15 Vet-Verified Toxic Types

Wondering what plant to get that won’t upset your cat? We’ve got you covered. This post lists 15 common houseplants that should be avoided by cat owners—usually. In some cases, cat owners can have a plant that is not necessarily...

a black cat with succulent plants

My Cat Is Obsessed with Food, Is Something Wrong? Vet-Verified Facts

Some cats like to eat more than others. But if your cat can’t seem to get full regardless of how much they gulp down and are constantly jumping up onto your kitchen table to shove their face into the food...

Hungry cat sitting next to bowl of food at home kitchen and looking at camera

8 Health Benefits of Coconut Oil for Cats: Vet Approved Guide & Tips

Coconut oil is a versatile and natural product that has gained popularity in recent years. It is derived from the meat of mature coconuts and is known for its numerous health benefits for humans. But did you know that coconut...

a kitten playing with coconut

How Long Does a Cat Hold a Grudge? Vet-Reviewed Information

Your cat doesn’t hate you. Thankfully, humans are the only species that write vengeful songs about our exes and actively harbor bitterness. Although cats don’t technically hold grudges, that argument might be a tough one to prove at times when...

owner petting a hissing angry tabby cat

8 Best Waterless Cat Shampoos in 2026: Reviews & Top Picks

Cats are known for their grooming, as they spend such a large part of their day, every day, bathing themselves. But sometimes your cat might get into something nasty that they might need help removing. Most cats are also known...

light grey cat with rubber ducky bath bathroom shampoo

Is Your Cat Vomiting? Try These Gentle Vet-Approved Diet Fixes

Watching your cat throw up is scary, and the wrong food can make things worse. When your feline friend’s stomach is upset, choosing the right diet becomes a delicate balancing act. But don’t worry, with a few smart moves, you...

a cat that feels sick and seems to vomit

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.