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.

Cat Bladder Cancer: When to Euthanize (Vet Explained Signs & Advice)

vet checking bengal cat

Having to make the decision to euthanize a beloved companion is one of the hardest parts of being a pet parent. Even if your cat has been diagnosed with a terminal illness, knowing exactly when to say goodbye is tricky. Naturally, we want to keep our fur babies with us for as long as possible, but we also don’t want them to suffer.

If your cat has been diagnosed with bladder cancer, this article offers guidance for monitoring their quality of life, signs that it may be time to consider euthanasia, and links to some pet loss support resources.

divider 2 cats

How Long Can Cats Live With Bladder Cancer?

Unfortunately, the prognosis for bladder cancer is not very good in cats. A retrospective study of 118 cats reported the following median* survival times after diagnosis:1

  • Cats who did not receive any treatment: 46 days
  • Cats who received medical treatment only (no bladder surgery): 176 days
  • Cats who received bladder surgery +/- other treatments: 294 days

*All cats in the study: 155 days. Median means the middle point between the lowest and highest number

While these numbers are disheartening, they can be helpful in setting realistic expectations for the timeline of this disease.

vet-checking-up-the-cat
Image Credt: PRESSLAB, Shutterstock

A Guiding Principle for Euthanasia

Some people may find it comforting to think about the meaning of the word euthanasia, which is “good death”. Most veterinarians feel that being able to offer the option of euthanasia is a privilege, because it enables them to end a patient’s suffering. Ideally, the goal when planning the timing of euthanasia is to prevent unnecessary suffering.

A lot of the guilt pet parents feel when choosing the timing of euthanasia stems from concern about cutting their pets’ lives short: what if they were euthanized too soon? How much longer might they have lived? This is where the concept of quality over quantity comes in.

Many veterinarians counsel that it is better to euthanize a little early than too late. Feelings of regret most often result from having waited too long to make the decision, and knowing that your pet suffered.

If you like to talk with a vet to clear out any other doubts you might have regarding this topic, you can consult one online.

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

divider 2 cats

All Feelings Are Allowed

All of that being said, the timing of euthanasia also has to be right for you and your family. Give yourself permission to feel all the emotions that come up for you and take time to process them, from the time your cat is diagnosed with cancer to the moment you know in your heart that euthanasia is the kindest choice for them.

Grief can show up in many different ways, for example, anger, denial, or depression. Having to choose to say goodbye to a much-loved family member is incredibly difficult, and all of your feelings are valid.

tabby cat lying on a womans chest
Image Credit: Alek_B, Pixabay

How Will I Know If/When My Cat’s Quality of Life is Declining?

Cats are notoriously good at hiding their discomfort from us, so understandably you may be wondering: how am I supposed to know if my cat has a good quality of life? Fortunately, veterinarians have developed some very practical resources to help make this assessment a bit more objective.

Dr. Alice Villalobos, a hospice veterinarian, created the HHHHHMM quality of life scale, with a simple scoring system. The letters stand for:

  • Hurt
  • Hunger
  • Hydration
  • Hygiene
  • Happiness
  • Mobility
  • More Good Days than Bad

Each item is rated out of ten, with one indicating poor and ten being excellent. As a general guideline, a total of more than 35 points is considered to reflect a reasonable quality of life.

It may be useful to go through this exercise at the time of your cat’s cancer diagnosis, and then repeat it periodically to help you identify changes in their quality of life.

The Ohio State University Veterinary Medical Center has also created a quality-of-life assessment questionnaire with a scoring system, which you can find here.

How Will I Know When It Is Time to Euthanize My Cat?

A veterinarian can provide guidance that is more specific to your kitty but, with reference to bladder cancer, general signs of deterioration to watch for may include:

  • Frequent trips to the litter box but only peeing small amounts
  • Straining to urinate (pee)
  • Meowing or crying when using the litter box
  • Dribbling urine
  • Decreased appetite or vomiting
  • Coughing or difficulty breathing (if the cancer has spread to their lungs)

One of the biggest concerns with bladder cancer is that the tumor can block the flow of urine (pee). If your cat is unable to pee, this is an emergency requiring urgent veterinary attention!

Deciding on the exact time to schedule euthanasia can be difficult. It may bring you some comfort to know that cats do not spend time their time thinking about the past or future, and they do not likely have any concept of how long they “should” live. They live in the moment, which is why we should focus on how many good vs. bad moments (and days) they are having.

cat on the table being checked by a vet
Image Credit: brodtcast, Shutterstock

Where Can I Find Pet Loss Support?

A veterinarian may be able to guide you to a local support group, or you might prefer to seek help from a professional pet loss counselor.

The Ontario Veterinary College (OVC) in Canada offers some excellent written resources, including how to help children navigate their grief, which you can find here.

divider 2 cats

Conclusion

If your cat has been diagnosed with bladder cancer, the veterinarian will do everything they can to keep them comfortable for as long as possible. They can help you monitor your kitty’s quality of life and guide you through the decision-making process when it is time to consider euthanasia.

Saying goodbye to a beloved pet is never easy, and it can be especially difficult to have to choose the exact timing of that goodbye. Hopefully, however, you may find some peace in knowing that you can make sure your loved one doesn’t suffer.


Featured Image Credit: Zhuravlev Andrey, 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 Are Cats Afraid of Cucumbers? Our Vet Explains

Videos of cats getting frightened by cucumbers abound online. They usually follow a vaguely similar pattern; a pet parent puts a cucumber behind...

10 DIY Litter Boxes for Large Cats You Can Make Today

Every cat deserves a comfortable litter box to do their business, and for large cats, that’s a little tricky. If your cat doesn’t...

10 Best Electronic Cat Toys in 2025 – Reviews & Top Picks

Cats have an innate instinct to hunt, and this instinct is apparent by their love of climbing, chasing, and playing. This hunting instinct...

Why Do Feral Cats Cry at Night – 7 Vet Reviewed Reasons

Have you ever been kept up at night with the sounds of cats vocalizing outside your bedroom window? We’ve all been there, which...

More related

Is It True That All Cats Have Eyebrow Whiskers? Vet-Verified Facts & FAQ

One of the most distinct facial features of a cat would be the whiskers. While the most prominent whiskers on a cat are...

Is Silvervine for Cats Better Than Catnip? Vet-Approved Facts & FAQ

If you have a feline companion at home and you’re looking for new ways to introduce fun and enrichment to their life, you...

4 Top Cat Dating Websites to Find the Purrfect Partner in 2025

The first online dating site appeared in 1994, and the world of online dating has morphed and evolved over the years1. These days,...

Will a Male Cat Mate With a Female if She’s Not in Heat? Vet-Reviewed Feline Behavior Explanation

As cat parents, we know that female cats mate when in heat, but what about male cats? They don’t go into heat like...

Keep reading

Why Do Cats Like Q Tips? 3 Possible Reasons & Vet-Reviewed Safety Tips

If you have ever noticed your cat chasing after strange objects and trying to chew on them, you probably understand how fun it is for cats to play around with Q tips. In your cat’s mind, Q tips are strangely...

Wooden cotton swabs and the paw of a gray cat on bright yellow background

Can Cats Sense Tornadoes? Vet-Reviewed Facts & Safety Tips

Tornadoes are a very dangerous weather system that can cause significant damage to homes, cars, property, wildlife, and anything else in their path. While tornadoes can form suddenly and cause a lot of damage in very little time, we humans...

Gray cat looking out the window

Why Do Cats Like to Sleep in Sinks? 5 Vet-Reviewed Reasons

Cats are notorious for sleeping in weird positions and places. Their amusing bed choices make great content for photo albums and social media feeds, but when you look beyond the entertainment, you might be a bit confused and curious. For...

Grey cat sleeping in the bathroom

10 Best Lickable Treats for Cats in 2025 – Reviews & Top Picks

Cats can be picky eaters, leaving you frustrated about spending money on cat food that goes uneaten. If you’re looking for ways to get your cat to eat, providing lickable treats is an excellent way to entice your cat. Most...

woman feeding her cat with a treat

7 Most Common Allergies in Cats: Vet-Verified Triggers, Signs & Treatments

If your cat is suffering from allergies, it’s usually one of these four types: environmental, food, seasonal, or flea. However, more specifically, there are thousands of potential allergens all around. Your cat could be allergic to the plants in your...

Cat with fleas

Can Cats Eat Roast Beef? Vet Reviewed Benefits & Concerns

It is difficult to ignore the urge to spoil our pets. After all, we do it all the time for ourselves, so we want to give our lovely cat a tasty treat from our plate. But before you give human...

Can Cats Eat Roast Beef

HempLucid Organic Full-Spectrum CBD for Pets Review 2025: My Kitten, Makoa’s Experience

Are you on the hunt for an affordable, quality pet CBD oil for your kitty? I just stumbled upon a product that fits that description and then some. Organic Full-Spectrum CBD for Pets from HempLucid is a remarkably affordable pet...

HempLucid CBD Pet Tincture

Why Do Cats Hide Their Toys? Funny Feline Behavior

If you’re around cats long enough, you come to find that they thoroughly enjoy hiding things. Whether it’s their favorite toys, a treat, or even your car keys, if they like it, they want to keep it for themselves. It’s...

cat with toy on the cat house