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

By Elizabeth Gray · Reviewed & fact-checked by Dr. Chyrle BonkVet Approved
Dr. Chyrle Bonk
Reviewed & Fact-Checked byDr. Chyrle BonkDVM (Veterinarian)
On top of healing animals and writing for veterinary publications, Dr. Chyrle Bonk owns a small cattle herd! When she’s not busy with those things, she can be found somewhere in the Idaho outdoors with her husband and two kids.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Read about our vets
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: 

Sources

Featured Image Credit: Elena Loginova, Shutterstock

Expert cat care, straight to your inbox

Vet-reviewed advice, behavior tips, and the best of Catster. Free, and you can unsubscribe anytime.

By signing up, you agree to our Terms & Conditions and Privacy & Cookies Policy.

Elizabeth Gray
Authored by

Elizabeth Gray

Join the conversation

Ask a question, share your story, or send private feedback.

Rate this post
Required to post. Only our editors see your rating.
Who should see this?

A human reviews every comment before it appears. Your email is never published.

10 Vet-Verified Cornish Rex Facts That Cat Lovers Should Know

10 Vet-Verified Cornish Rex Facts That Cat Lovers Should Know

Cornish Rexes are known for their charming appearance and personality. These unique-looking cats are sure to catch one’s eye with their curly coats, bat-like e…

Jessica Kim
By Jessica Kim ·
How Long Do Devon Rex Cats Live? Vet-Verified Facts & Data

How Long Do Devon Rex Cats Live? Vet-Verified Facts & Data

The Devon Rex cat is famous for their unique looks, marked by a triangular face, huge ears, and large eyes. But even more interesting than their appearance is…

Christian Adams
By Christian Adams ·
How Big Does a Cornish Rex Get? Vet Reviewed Weight & Growth Chart

How Big Does a Cornish Rex Get? Vet Reviewed Weight & Growth Chart

The Cornish Rex is a cat breed that is extremely distinct. Like other animals with the rex gene, they are covered in a layer of downy, soft, curly, or wavy fur…

Ashley Bates
By Ashley Bates ·
Cornish Rex Price: What They Cost in 2026

Cornish Rex Price: What They Cost in 2026

The Cornish Rex is a domestic breed of cat that has unusual fur. Instead of an outer coat, a middle layer, and an undercoat, like most other cat breeds, they h…

Rachael Gerkensmeyer
By Rachael Gerkensmeyer ·

Cornish Rex Cat: Breed Info, Pictures, Traits & Facts

The Cornish Rex cat is a unique and energetic cat that fits in most families. It was first discovered in Cornwall, England, and has since won the affection of…

Christian Adams
By Christian Adams ·
Cornish Rex Cat: Breed Info, Pictures, Traits & Facts

Cornish Rex vs. Devon Rex: Main Differences (With Pictures)

It can be easy to confuse the Cornish Rex and the Devon Rex. Their names alone are so similar, coming from the breeds’ origins in the United Kingdom. Both cats…

Christian Adams
By Christian Adams ·
Cornish Rex vs. Devon Rex: Main Differences (With Pictures)

7 Cat Breeds With the Shortest Lifespans (Info & Pictures)

Based on a recent study conducted in the UK looking at almost 8,000 cats, researchers established that the average lifespan for pet cats is around 12 years.1 A…

Christian Adams
By Christian Adams ·
7 Cat Breeds With the Shortest Lifespans (Info & Pictures)

12 Longest Living Cat Breeds (With Info & Pictures)

Cats are intelligent, resourceful, and graceful. They typically live longer than dogs, and you need to be prepared to be a cat’s caregiver for longer than you…

Gregory Iacono
By Gregory Iacono ·
12 Longest Living Cat Breeds (With Info & Pictures)

10 Types of Rex Cat Breeds (With Info & Pictures, Vet-Reviewed)

While most people think of cats with straight hair, that’s not always the case. Rex cats are known for their curly hair, and there are multiple types of Rex ca…

Adam Mann
By Adam Mann ·
10 Types of Rex Cat Breeds (With Info & Pictures, Vet-Reviewed)

Cornish Rex vs. Sphynx: Differences Explained (With Pictures)

The Cornish Rex and Sphynx are both charming, diminutive, and low-shedding cat breeds known for their respective distinctive looks. As with many cat breeds out…

Catster Editorial Team
By Catster Editorial Team ·
Cornish Rex vs. Sphynx: Differences Explained (With Pictures)

Tennessee Rex Cat Breed: Info, Pictures, Temperament & More

Tennessee Rex cats are gorgeous medium-sized cats with soft wavy hair. They come in long and short-haired versions, but all have fur with a beautiful satiny fi…

Lorre Luther
By Lorre Luther ·
Tennessee Rex Cat Breed: Info, Pictures, Temperament & More

Oregon Rex Cat: Info, Pictures, Traits & Facts

The Oregon Rex is an extinct breed of cat that was in America between the 1940s and 1970s. It began in 1944 after the discovery of a cat with short, curly fur…

Christian Adams
By Christian Adams ·
Oregon Rex Cat: Info, Pictures, Traits & Facts

Love Cats? So Do We! Join the Catster Community

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

You may opt-out at any time. View our Privacy Policy for more information.

The Catster site on a phone