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.

Cornish Rex Lifespan: How Long Do They Live? Vet-Reviewed Facts

Share

Cornish Rex kitten

In 1950s England, a random genetic mutation produced a kitten with an unusual curly coat. From this single kitten, the Cornish Rex breed was born. Known for their distinctive soft coat, huge ears, and massive personalities, Cornish Rex cats make lovely family pets. Once you welcome a Cornish Rex cat into your home, you’ll probably wish they could stay with you always! Sadly, no pet can live forever, so you might be curious how long the average Cornish Rex’s lifespan is. You can expect a Cornish Rex cat to live 15–20 years on average. In this article, you’ll learn how long Cornish Rex cats live and how to keep your kitty healthy as long as possible.

divider 2 cats

Cornish Rex Average Lifespan

You can expect a Cornish Rex cat to live 15–20 years on average. They are small cats that are considered a relatively healthy breed overall. In the next section, you’ll find tips on caring for your Cornish Rex to help them enjoy a long lifespan.

Cornish Rex Cat
Image Credit: VIS DE ANIMALIS, Shutterstock

divider 1 paws

How to Care for Your Cornish Rex for a Long Lifespan

Feeding & Diet

For small cats, Cornish Rexes are known for having big appetites. Fortunately, they tend to burn a lot of calories because they’re such active kitties. Keep your Cornish Rex healthy by feeding only as many calories as they need each day. Ask your vet to help you calculate this number based on your cat’s age, weight, and activity level.

Environment

The Cornish Rex cat’s signature coat is wonderfully soft to the touch but doesn’t provide them much protection or insulation. They don’t tolerate temperature extremes well and should always be indoor pets. In chilly weather, they may need to wear a sweater. Make sure they always have places to keep out of the heat or curl up warmly.

Cream Cornish Rex
Image Credit: Rita_Kochmarjova, Shutterstock

Care

Cornish Rex cats love to play, and it’s usually easy to ensure they get enough exercise and stay at a good weight. If you allow your Cornish Rex to spend supervised time outside in a safely confined space, apply a cat-safe sunscreen to unprotected skin, such as their ears.

Grooming

Cornish Rex cats shed but not as much as other cat breeds with long hair or layered coats. However, their coats and skin collect oil more quickly than other cats. Because of that, they need regular bathing to keep them healthy and help prevent skin infections. The Cornish Rex also needs frequent ear cleaning because they may be prone to wax buildup.

Breeding

Spaying or neutering your Cornish Rex may help them have a longer lifespan. Unneutered males are more at risk of escaping outside, fighting, or developing testicular problems. Intact females may develop mammary tumors or uterine infections. Pregnancy presents its own health risks for the cat as well.

Black Cornish Rex Cat
Image Credit: absolutimages, Shutterstock

Healthcare

The Cornish Rex is more prone to inheriting polycystic kidney disease and an eye condition called progressive retinal atrophy. Both conditions can be detected by genetic testing. They may  also be prone to luxating patellas and a heart condition called hypertrophic cardiomyopathy.

When researching Cornish Rex breeders, look for one who has conducted genetic testing and health screenings on their cats. Starting with a healthy kitten will help increase the chances of your Cornish Rex living a long lifespan. Ensure your cat gets regular checkups at the vet and follow all recommendations for preventative healthcare.

divider 2 cats

The Life Stages of a Cornish Rex

The five life stages of a Cornish Rex are kitten, adult, mature adult, senior, and geriatric.

Cornish Rex Life Stages
  • Cornish Rex cats are usually considered kittens up until about 1 year of age. During the first year of life, support their growth and development with proper nutrition and preventative healthcare.
  • From 1–6 years old, the Cornish Rex is an adult and should receive regular checkups and a proper diet to support a healthy weight.
  • From 7–10 years, the Cornish Rex is considered a mature adult. At this stage, many vets recommend starting screening tests to catch any age-related health conditions early.
  • Cornish Rex cats reach the senior life stage at around 11 years old, where they may experience conditions like kidney disease, hyperthyroidism, and other age-related changes.
  • With their long average lifespan, Cornish Rex cats frequently reach the geriatric life stage, which is from 15–25 years old. Your vet can help you keep your pet as healthy as possible with increased checkups, diet changes, and medical management of chronic conditions.

divider 3 paws

How to Tell Your Cornish Rex Age

If you buy or adopt a Cornish Rex kitten, you’ll probably already have a good idea of their age. On average, kittens gain about a pound of weight per month, so your pet’s weight can give you an idea of how old they are if you don’t know. You can also check their teeth. Kittens begin losing their baby teeth at 3-4 months old and should have all their adult teeth by 7 months old.

Once they’re fully grown and have all their teeth, it’s much harder to tell how old a Cornish Rex cat is. Checking the wear and tartar on the cat’s teeth is not always reliable because some cats have worse dental health than others.

Mature adult Cornish Rex cats may start showing some age-related changes to the eyes that could help narrow down how old they are. Older cats may move slower due to joint pain, neglect their grooming, and display abnormal blood work results.

It can be hard to determine a Cornish Rex cat’s exact age in years if you don’t know it, but you can usually get an idea of their life stage. This knowledge can help you provide your cat with the proper diet and appropriate medical care. If you have questions about your cat’s age, speak to your vet.

Cat Average Life Expectancy
Click Here to Enlarge

divider 2 cats

Conclusion

The charming, affectionate,  and playful Cornish Rex thrives in almost any home environment and gets along well with kids and other pets. Fortunately, they also have a long average lifespan, so you can usually expect to enjoy the company of your Cornish Rex for 15–20 years. By providing the right environment, diet, and preventative healthcare, you can help ensure your Cornish Rex lives a long, healthy life.

See Also: 


Featured Image Credit: Elena Loginova, 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

3 Food Sources of Thiamine for Cats (Vitamin B1): Vet Reviewed Options

We all want our cats to be healthy, happy, and with us for as long as possible. That’s why we take them to...

Can Cats Eat Deli Meat (Lunch Meat)? Vet-Verified Facts & FAQ

If you’ve ever looked up from a leisurely lunch to find your cat eyeballing your meal, you know our feline friends can give...

10 Reasons to Take a Pet First Aid Course: Vet Approved Advice

As much as we love our pets, it sometimes feels like we have furry toddlers in our homes. They get into things that...

Can Cats Eat Bully Sticks? Vet Approved Nutrition Advice

Multi-pet households come with their fair share of challenges, one of which is keeping separate treats for your cats and dogs. Both animals...

Keep reading

Are Dahlias Poisonous to Cats? Vet-Reviewed Houseplants Examined

Dahlias are perennials that bring a splash of color to late-summer gardens. The flower blooms from mid-July until the first frost in most parts of the U.S. Smaller varieties grow well in pots, and many gardeners bring the cut flowers...

Catster_Are Dahlias Poisonous to Cats

Are Elevated Cat Bowls a Good Idea? Vet-Reviewed Facts & FAQ

Reduced back pain, better digestion, healthier eating—when owners see these big benefits claimed, it’s no wonder they turn towards elevated food and water bowls for their cats. These bowls are usually raised so their bottoms are between 4 and 6...

cat eating on elevated feeding

How to Sedate a Cat for Grooming: 3 Vet-Approved Methods

Some cats do not like being groomed, but if they’re long-haired or unable to groom themselves for any reason, grooming is a necessity. If their coat is not free of mats and tangles, it can tug uncomfortably on your cat’s...

groomer brushing a maine coon cat

Why Do Cats Like Watching Other Animals? Vet-Reviewed Feline Behavior

Cats spend a good portion of their day observing their environment. Other animals are of particular interest for felines, whether it is a dog or bird they spotted from the window. Although cats may watch other animals because they simply...

cat-watching-birds-in-the-window

Does Peppermint Oil Kill Fleas on Cats? Vet-Reviewed Effectiveness & Safety

Over the past decade, there has been an increased interest in using essential oils, including peppermint oil, to control fleas and ticks on pets. However, there is little evidence to support its effectiveness and safety on felines as a flea...

peppermint oil

9 Interesting Cat Kidney Facts

Cats entertain us with acrobatic moves and amusing behavior, and some cat owners may believe that their strange pets come from another planet. Although felines seem alien to us, they’re more similar to humans than you may think. For instance,...

tabby cat at vet clinic

Is It True That All Cats Have Carpal Whiskers on Their Legs? Feline Anatomy Explained

There’s no question that cats are unbelievably adorable. Everything from their gorgeous eyes to their tiny little paws is nothing short of cuteness galore. But one often overlooked feature that adds to this cuteness is the whiskers. Everyone knows that...

Close up to a ginger cat paws and claws scratching carpet

16 Common Household Items Cats Like to Play With

Are you tired of spending money on toys your cat doesn’t like? Maybe your cat likes it for a few days but loses interest after a while. What if you stopped buying cat toys and instead started using items you...

cute ginger cat sitting in a paper bag and looking curious sideways

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.