Devon Rex Health Issues

The Devon Rex is a reasonably robust breed that often lives into its mid-teens, but it carries a handful of health conditions worth understanding before you adopt. Several are inherited and have DNA tests, including a muscle condition specific to the breed and a blood-clotting disorder, alongside the heart, joint and skin issues seen in the breed. This guide walks through each condition, the signs to watch for, and how regular veterinary care, the breed's specific skin care, and early insurance keep a Devon Rex healthy in Brisbane.

10 min read · Updated September 29, 2026
Author: LocalPetFinder Team
A healthy Devon Rex cat with curly coat and large ears, illustrating a guide to the breed's health conditions for Brisbane owners
The Devon Rex is reasonably robust but has a distinct health picture. This guide is general information, not veterinary advice; your vet is the right guide for your cat.

The short answer

The Devon Rex is a reasonably robust cat that often lives into its mid-teens, but the breed is associated with a few conditions: Devon Rex myopathy (an inherited muscle disorder causing weakness, with a DNA test), hypertrophic cardiomyopathy (HCM), patellar luxation (slipping kneecaps), an inherited coagulopathy (a clotting disorder with a DNA test that matters around surgery), and the skin and ear problems that go with the sparse coat, plus dental disease. DNA tests exist for the inherited conditions, and responsible breeders screen for them. Adopting an adult rescue cat with a vet history lets you see its real health. Keep the cat lean, keep up its specific skin and ear care and regular vet and dental checks, mention the breed before any surgery, and see a vet for muscle weakness, breathing trouble or unexplained bleeding. This is general information, not veterinary advice.

Devon Rex myopathy: the muscle condition

Devon Rex myopathy is an inherited disorder of the muscles seen in the breed, causing generalised weakness. It can show as a bobbing or low-held head, tiring quickly, a weak or unsteady gait, and in more serious cases difficulty swallowing, usually appearing in young cats. It is not something an owner causes. The reassuring parts are that a DNA test is available, which responsible breeders use to avoid producing affected kittens, and that it is relatively uncommon. Affected cats need veterinary management and their quality of life varies, so the practical step for an owner is to watch for the signs, muscle weakness, a bobbing head or trouble swallowing, and see a vet promptly. The RSPCA Knowledgebase and your vet are good references, and inherited-disease tests are catalogued by screening bodies such as the Orthopedic Foundation for Animals.

HCM and patellar luxation

The clotting disorder, skin and dental

Devon Rex are among the breeds affected by an inherited coagulopathy, a blood-clotting disorder related to how the body uses vitamin K, in which the blood does not clot normally. It matters most around surgery or injury, when abnormal bleeding can occur, so it is worth mentioning the breed to your vet before any planned procedure, and seeing a vet promptly for unexplained or prolonged bleeding or bruising. A DNA test is available, and responsible breeders test for it.

On the skin, the sparse coat that defines the breed means the skin's oils build up rather than spreading through a full coat, so Devon Rex can be prone to greasy skin, yeast (malassezia) skin infections, and waxy ear problems, all of which is why gentle bathing and regular ear cleaning are part of caring for the breed, covered in the coat and skin care guide. Dental disease is common in the breed too, so brush the teeth where tolerated and keep up vet dental checks, watching for bad breath, drooling or difficulty eating.

Adopting an adult, and insuring early

With a breed carrying several inherited conditions, the transparency of a rescue adult is genuinely valuable: the cat has been vet-checked, obvious issues are known, and you can see its real health rather than gamble on how a kitten will develop. Most Devon Rex are robust cats that live long lives, so this is about going in informed. Because the bigger costs are unpredictable, pet insurance taken out while the cat is young is the most valuable safeguard, since insurers exclude pre-existing conditions. Pair it with the preventive basics that keep any cat well: a lean weight, a good diet, the breed's specific skin and ear care, dental care, regular vet checks, and year-round cat-safe parasite prevention. For general veterinary guidance the Australian Veterinary Association is a reliable starting point, and your own vet is the right guide for an individual cat. Brisbane after-hours emergencies are handled by hospitals such as Animal Emergency Service at Jindalee and Underwood.

Thinking about a Devon Rex in Brisbane?

A rescue Devon Rex comes with a vet check and honest notes, so you adopt knowing the cat. Browse Devon Rex and rex-coated cats available across Brisbane and Queensland rescues.

See Available Devon Rex →

Frequently Asked Questions

What health problems are Devon Rex prone to?

The main ones to know are Devon Rex myopathy, an inherited muscle condition causing weakness, for which a DNA test exists; hypertrophic cardiomyopathy (HCM), a heart-muscle disease the breed is associated with; patellar luxation, or slipping kneecaps; an inherited coagulopathy, a blood-clotting disorder in the breed with a DNA test; and the skin conditions that go with the sparse coat, plus dental disease. There are DNA tests for the inherited conditions, and responsible breeders screen for them. Devon Rex are otherwise a reasonably robust breed that often lives into its mid-teens. A rescue cat should have a full vet check. This is general information, not veterinary advice.

What is Devon Rex myopathy?

Devon Rex myopathy, sometimes called a congenital muscular condition of the breed, is an inherited disorder affecting the muscles, causing generalised weakness that can show as a bobbing or low-held head, tiring easily, difficulty swallowing in worse cases, and a weak or unsteady gait, usually appearing in young cats. It is not something an owner causes. A DNA test is available, which responsible breeders use to avoid producing affected kittens, and it is relatively uncommon. Affected cats need veterinary management and their quality of life varies, so if you notice muscle weakness, a bobbing head or difficulty swallowing, see a vet. Your vet is the right guide for an individual cat.

Do Devon Rex get heart disease?

The Devon Rex is among the breeds associated with hypertrophic cardiomyopathy (HCM), a thickening of the heart muscle and the most common heart disease in cats generally. It can be silent for a long time and then show as laboured or fast breathing, lethargy, or in serious cases collapse or hind-limb problems from a clot, so it is hard to spot early without veterinary help. Vets can screen the heart with an ultrasound (echocardiogram). For an adopted cat, the practical steps are regular vet checks, watching for changed breathing or energy, and asking your vet whether screening makes sense for your cat. Treat obvious breathing difficulty as an emergency.

What is the clotting disorder in Devon Rex?

Devon Rex are among the breeds affected by an inherited coagulopathy, a blood-clotting disorder in which the blood does not clot normally, related to how the body uses vitamin K. It matters most around surgery or injury, when abnormal bleeding can occur, so knowing a cat's status is useful before any procedure. A DNA test is available, and responsible breeders test for it. For an adopted cat whose status you may not know, it is worth mentioning the breed to your vet before any planned surgery, and seeing a vet promptly for any unexplained or prolonged bleeding or bruising. It is uncommon but important to be aware of in the breed.

What about patellar luxation and skin problems?

Patellar luxation, where the kneecap slips out of its groove, is seen in the breed and can cause a skipping gait or lameness; mild cases are managed conservatively and more severe ones may need surgery, and keeping the cat lean helps. On the skin, the sparse coat that defines the Devon Rex means the skin's oils build up rather than spreading through a full coat, so the breed can be prone to greasy skin and yeast (malassezia) skin infections and to waxy ear problems, which is why the coat and skin care guide covers gentle bathing and ear cleaning. Dental disease is also common in the breed, so keep up tooth brushing and vet dental checks.

Is pet insurance worth it for a Devon Rex?

For most owners, yes, and it is easiest to arrange while the cat is young and healthy, because insurers exclude pre-existing conditions. A Devon Rex's potential issues, cardiac investigation, managing a muscle disorder, knee surgery, or a bleeding disorder around surgery, can add up, and a rescue cat's history is often unknown. Take out cover as soon as you adopt, read the waiting periods and exclusions, mention the breed to your vet before any surgery, and pair insurance with the preventive basics: a lean weight, a good diet, the breed's specific skin and ear care, dental care, regular vet checks and year-round cat-safe parasite prevention, which matters in Brisbane because South East Queensland has paralysis ticks all year.

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