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.

When to Euthanize a Cat With Liver Failure: Vet-Reviewed Advice

woman brought her cat to the vet

If you’re considering when the right time is to say goodbye to your cat if they are in liver failure, you are not alone. Knowing when to say goodbye is a heartbreaking decision for any owner, and it can be difficult to determine whether you’re making the right decision. Liver failure in cats usually follows liver disease, but there are situations where acute (sudden) liver failure can occur.

Luckily, most causes of liver disease can be treated before liver failure occurs, but if your cat’s liver is failing, you may have been told there’s not much more you can do. From my personal experience working with cats with liver failure, I would advise you to consider euthanasia for your cat when their quality of life is poor and before they are suffering.

Determining when to euthanize a cat with liver failure is a difficult decision, but allowing your cat to be free of pain and suffering at the end of their life is much better than allowing them to suffer.

divider cats oct 2024

What Is Liver Failure?

Liver failure occurs when the liver stops functioning as it should and begins to shut down. It is usually the end stage of liver disease, but some toxins can cause severe enough damage to the liver that it shuts down.

The liver is a vital organ since it controls many of the processes in your cat’s body that allow them to live. The liver has so many functions that the body cannot survive without it. The following are just a few of those functions.

The liver:
  • Creates proteins
  • Makes bile, which allows your cat to digest food
  • Helps your cat’s blood to clot
  • Removes waste products or toxins in the blood
  • Regulates energy metabolism

Because the liver is involved in so many of the body’s functions, there are several ways in which it can be damaged. Common ways include fatty liver disease or acute toxicity caused by ingesting a toxin like acetaminophen. The amount of liver damage depends on the cause, but the liver can regenerate even from severe damage, and cats with liver disease can often recover if treated in time.

Liver failure occurs when the liver is irrevocably damaged due to large areas of the organ dying. This is most commonly seen in cats that have ingested something hepatotoxic (toxic to the liver). As the liver begins to fail, many other processes are affected, making it more difficult for the cat’s body to function.

If you are concerned about the health and well-being of your pet, seek veterinary advice for the best course of action.

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 3 paws

What Are the Signs of Liver Failure in Cats?

The signs of liver failure in cats are all similar, regardless of the cause. Some are more subtle than others, but liver failure usually produces signs that are impossible to ignore. Signs that the liver is failing can present themselves in multiple ways, often involving other bodily systems like the digestive or neurological system.

The signs of liver failure in cats include:
  • Vomiting and Diarrhea
  • Blood in the feces
  • Jaundice
  • Neurological signs such as seizures, shaking, collapse, circling or blindness
  • Ascites (fluid buildup in the abdomen)
  • Weakness
  • Inappetence
  • Pain

These are all primarily seen in severe liver damage or failure, and the signs of mild liver damage are usually more subtle and less severe.

a siamese cat getting examined by a vet at the clinic
Image By: Sergey Nivens, Shutterstock

divider 1 paws

Can Liver Failure Be Treated?

If the liver is failing, determining the cause may be an essential part of finding the right treatment. Liver failure can sometimes be reversed, depending on how severe the liver damage is and how aggressively it is treated. The liver is a regenerative organ, so there is a chance that cats with liver failure can fully recover.

The possibility of recovery will depend on factors other than the cause, such as the cat’s age, health, and overall condition. Constant monitoring is needed for cats experiencing liver failure, as well as fluid therapy to support their body. Replacing lost Vitamin K1 can help the blood to clot, oxygen can be supplemented, and feeding through a tube may also be part of the treatment.

However, if your cat is in end-stage liver failure and does not respond to treatment, there is usually little more that can be done apart from keeping them comfortable and pain-free. This is when your vet will talk to you about euthanasia.

Hispanic woman working in modern vet clinic talking to bengal cats owner
Image Credit: Pressmaster, Shutterstock

divider 2 cats

How to Know When to Say Goodbye

Knowing the right time to say goodbye is often the hardest part of owning a cat. They become a beloved part of our family, so balancing their needs with our emotions can be extremely difficult.

There are a few things to understand about liver failure when considering euthanasia. Sometimes, the liver gets damaged beyond repair very suddenly, so owners might have less time to decide. Other times, the liver may fail slowly, progressing to end-stage liver failure over months or years. Both of these situations are awful, and I’ve seen owners of cats with rapid and slow liver failure struggle to make a decision.

When talking with these owners, the cat’s quality of life is often discussed. Many of the owners I comforted could see that their cats had a poor quality of life when hospitalized with liver failure. Drawing blood, tube feeding, noise, and pain are likely experienced by cats who must be hospitalized, which can significantly impact their quality of life.

If the cat has a reasonable chance of recovering, many owners felt it was an acceptable price to pay for their cat to become healthy and have a good quality of life once they recover. Unfortunately, sometimes, a cat has little to no chance of recovering from liver failure. Liver failure is often excruciating, so saying goodbye and letting them go can be the kindest thing to do for them.

Common signs that a cat has a poor quality of life include:
  • Struggling to urinate or defecate, eat, or even move
  • Pain
  • The inability to groom themselves, play, or scratch
  • Frequent vomiting or diarrhea
  • Fear
  • No longer interacting with family or enjoying things they used to enjoy
  • Having more bad days than good

The last point is critical; when the bad days outnumber the good, you should consider your cat’s quality of life and whether it is time to put them to sleep.

Depressed cat
Image Credit: avi_acl, Pixabay

Many owners consider their cat’s quality of life if they need to be hospitalized with liver failure. As mentioned previously, staying in the hospital can be very distressing for cats, and some owners have wondered whether putting their cats through treatment is cruel. Although I believe we should always treat our pets when they need it, sometimes the likelihood of a cat recovering, even after intense treatment, is minimal, and the decision is made to put them to sleep to free them from pain and suffering before any treatment has begun.

This does not mean these owners don’t care about their cats or care for them any less than owners who elected treatment. Instead, they (and their veterinarian) agreed and understood that the stress and pain their cat would endure while in the hospital outweighed their slim chance of a meaningful recovery.

divider 3 paws

Conclusion

Liver failure occurs when the liver is significantly damaged, sometimes beyond repair. The condition can sometimes be reversed with treatment, but it depends on the overall health and condition of the cat, the cause of the liver damage, and how severe the damage is.

With end-stage liver failure, the side effects are severe and affect different body systems, and the cats can suffer. Thinking about your cat’s quality of life and discussing with your vet how comfortable they can be kept is essential when considering if or when to euthanize a cat with liver failure, and sometimes the kindest thing to do is to let them go.

It is very hard deciding to put a cat down and losing a beloved pet. But feeling grief is normal, and you don’t have to go through it alone. Pet bereavement resources can provide guidance and support for owners who have lost their cats, and talking about it can help.


Featured Image Credit: Stock Asso, 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

Does Your Cat Believe That You’re a Cat, Too? John Bradshaw Has an Opinion on This

As most of you dedicated Caster readers know by now, I’m a total geek when it comes to cat science and behavior. When...

Can Cats Eat Graham Crackers? Vet-Reviewed Facts & Alternatives

Cats are known for their picky eating habits, but they can sometimes surprise us by nibbling on unexpected treats. One strange item that...

6 Pet-Friendly Hotels In Charleston, SC (2026 Update)

If you plan to visit the numerous Charleston sites soon, you will probably spend all your extra time planning. If you want to...

How to Tell If a Cat Is a Stray or Outdoor? Vet-Reviewed Differences & Recommendations

You’ve likely come across cats walking the streets in your community as you go on about your daily business. Have you ever wondered...

More related

Can Cats Get Dogs Sick? Our Vet Explains Illnesses & Prevention Tips

If you have a sick cat, you may wonder if they may be able to spread the same sickness to your unsuspecting dog....

6 DIY Fun Fleece Toys for Cats To Make At Home Today

Many cats love fleece. It’s also very easy to work with, making it a great option for new DIYers. There are many ways...

How to Make My Cat More Confident: 12 Steps to Follow

Does your cat run and hide when they hear someone at the front door? Do they dash away under the bed when they...

Male vs Female Bengal Cat Breed: What’s the Difference? (With Pictures)

The Bengal cat breed is an exotic-looking domesticated breed that comes from hybrids of other domestic cats, such as the Egyptian Mau and...

Keep reading

6 Vet-Reviewed Reasons Why Your Cat Poops in the Tub & How to Fix It

If you’re a cat owner, you know how frustrating it can be when your cat poops or urinates anywhere in your home other than their litter box. It’s messy, smelly, and challenging to clean up! One popular place that cats...

a cat sitting in the bathtub

Cat Pheromones for Aggression: Vet Approved Facts & FAQ

If you have the time, space, and financial ability, there are many benefits to owning more than one cat. The kitties can keep each other company when you’re away, play together, and help each other exercise. However, not all adult...

Angry,Calico,Cat,Lying,On,Edge,Of,Bed,Wagging,Tail

7 Best Calming Aids for Cats in 2026 – Reviews & Top Picks

Cats can benefit from calming aids for a variety of reasons. If you have a cat that is particularly nervous, overly energetic, stressed, or frightened from external factors such as thunderstorms, then using a calming aid for your cat can...

Why Are My Cat’s Ears Hot? Vet-Reviewed Facts & FAQ

You may find yourself petting your beloved kitty, only to feel that their ears are abnormally hot. This can be worrying, especially if it’s something that you’ve never noticed before. Is it normal for your cat’s ears to be hot?...

cat ear close up

Why Do Cats Eat & Chew on Plants? Vet-Verified Facts & Plant Guide

Cats are strict carnivores, preferring to hunt down small prey like mice or birds. However, sometimes you might find your cat snacking on some leaves in your home or garden. Should you stop them from doing this? It depends on...

Cat and plants_shutterstock_Stenko Vlad

What Shots Do Kittens Need? Vet-Reviewed Schedule, Facts & FAQ

Kittens need several vaccinations to protect them from infectious diseases. All kittens are susceptible to these diseases, no matter what their breed is. Therefore, these vaccinations are highly recommended and a part of most kitten’s early vet care. Let’s look...

vet giving kitten vaccine

Can Cats Eat Gum? Vet-Approved Facts & FAQ

Chewing gum comes in several flavors, and the scent can pique a cat’s curiosity, especially if it’s wrapped in shiny foil. So, it’s pretty easy for cats to accidentally take a bite or get it stuck on their face and...

Can Cats Eat Gum

Why Does My Cat Paw Under The Door? The Reasons For This Behavior (Vet-Verified)

If you are sitting in your room with the door closed and hear a scratching sound, chances are you’ll know what’s causing it if you own a cat. A small furry paw from under your door may be a common...

cat paws under the door

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.