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)

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.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Are Cats Drawn to Clutter?

It never fails. I get into a project and the rest of life piles up. And I mean piles up. There’s a stack...

How to Stop a Cat from Scratching Furniture: 4 Vet Approved Methods

Cats are great pets, but they do have some features that can be undesirable. There is nothing more frustrating than watching your cat...

How Do Cats Learn Their Names? Interesting Facts & Info (Vet-Verified)

It’s always fun naming your new cat or kitten. Names can be adorable, hilarious, commanding, and fitting (although not always). But cats march...

Disaster Preparedness for Cats: 12 Vet-Approved Steps to Take

No one likes to think it could happen to them. After all, we have cell phones and technology that can alert us to...

More related

9 Best Cat Foods for Smelly Poop in 2026: Reviews & Top Picks

If you’re being chased out of the room every time your cat uses the litter box, it may not be their cat litter...

5 Vet-Approved Cat Cone Alternatives For When They Need an E-collar

The cone of shame is every domesticated animal’s least favorite accessory—and for good reasons! It is uncomfortable, inconvenient, and just plain embarrassing. But...

My Cat Is Sneezing Blood, What Do I Do? Our Vet Explains the Causes & Care Guide

If you notice your cat sneezing blood, it should be a cause for concern. Cats can sneeze blood for many reasons: blocked nasal...

Solving the Mystery of the Messy Bowl: Cats on Camera

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

Keep reading

7 FIV in Cats Vet-Approved Facts You Might Not Know About

Feline immunodeficiency virus (FIV) is a common and serious infection in cats worldwide. This lentivirus, which weakens the cat’s immune system, is similar to the human immunodeficiency virus (HIV) responsible for AIDS in humans 1. Although cats with FIV may...

woman holding her cat in vet clinic

Vet-Reviewed Tips for Being a Good Cat Foster Parent

Being a foster parent for cats living in shelters is one of the most rewarding things you can do if you’re a pet lover. It can be difficult at times, though, for a variety of reasons. You can get attached...

woman holding a cat in the porch

Can Cats Eat Hummus? Vet-Reviewed Nutrition and Safety Facts

Hummus is a popular Middle Eastern food enjoyed by many Americans. You can enjoy hummus as a dip, dish, or spread, and if you enjoy eating it in your home, you probably wonder if your cat would like it as...

Can Cats Eat Hummus

What’s the Cost of Chemotherapy for Cats? 2026 Price Overview

Cancer is a very serious disease in cats, and it’s one of the most common causes of death for elderly felines. Chemotherapy is one of the treatment options available for cats. However, it is very expensive and, therefore, often not...

cat treated in vet clinic

Can Cats Get Jealous? How to Handle Cat Rivalry (Vet-Approved)

People tend to think of their pets as members of the family, interpreting their behavior and personality the same way that one would with another person in the household. We give our pets human-like traits by pairing a certain emotion...

two cats drinking milk from the same bowl

Is Rabies Common in Cats? Vet Approved Facts & Stats

Just reading or hearing the word rabies is enough to strike terror into the hearts of most cat lovers. It’s a horrible disease that almost always results in death if left untreated. The frequency of rabies in cats varies greatly...

cat in vet clinic recovering from spaying procedure

Can Cats Eat Lasagna? Vet-Approved Nutritional Facts

If you were brought up watching Garfield on television or reading the comics, you might come into the world of cat ownership thinking that cats (a) hate Mondays and (b) love lasagna. While both might be true, it’s impossible to...

Can Cats Eat Lasagna

How Much Is Too Much To Spend On A Sick Pet? Vet-Reviewed Facts & FAQ

Taking your pet to the vet for even routine care, such as vaccinations, can be pricey. But what about when your pet is ill and needs long-term or emergency care? Those costs could become astronomical, which begs the question of...

cat in the clinic with veterinarian and owner

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.