Every folded kitten carries the gene, so what matters is knowing what to check and what to ask.
Scottish Fold mix
Scottish Fold
Scottish Fold
Scottish Fold
Scottish Fold
Scottish Fold mix
Scottish Fold
Scottish Fold
Buying guides for most breeds tell you to find the healthy kitten in the litter. That advice does not transfer here, and it is worth understanding why before you go and see one. The folded ear is caused by a single change in TRPV4, a gene that helps build cartilage throughout the body.[1] Ears fold because that cartilage is faulty. So every folded kitten, in every litter, from every seller, carries a copy.
Scottish Fold kittens at a glance
Short answer
Not in the sense buyers usually mean, because the folded ear is the gene. What varies is how much joint disease that copy causes, and it varies a lot. Some folded cats are stiff and sore young. Many others live comfortably for years.
Cats Protection puts the first half of that plainly. All Scottish Fold cats are affected by osteochondrodysplasia, a disorder of bone and cartilage development, and it cannot be bred out of the breed.[2] That is not a claim about one bad breeder. It is what the trait is.
The second half is where honest pages part company from scary ones. How often a cat with one copy ends up in real trouble is still an open question. In a study where four reviewers scored x-rays without being told which cats had folded ears, the folded cats did score worse, but the signs were much milder than earlier reports had described.[3] Australian veterinary records covering 1,131 Scottish Folds over 26 years put clinical diagnoses at 1.1 percent. A further 5.7 percent of that sample were logged as suspected cases.[4]
Those authors were careful about their own number, and so should you be. Diagnosis needs x-rays and those records hold none, so they say cases were likely missed.[4] The fair summary is that this is a real disease with genuinely variable severity. Nobody can look at a kitten and tell you which end of that range it will land on.
So the useful questions change. Not which kitten is clear, because none of the folded ones are. Instead: what can I feel for today, what should I ask, and what am I signing up for if it goes the wrong way.
Short answer
Five checks, in this order, and they take about three minutes. Tail first, because a stiff tail is the earliest thing an owner can feel. Then watch the kitten move, then feel the lower legs and paws, then ask to see the parents doing the same things.
None of this replaces a vet. What it does is tell you whether to slow down. The signs to look for come from the study that first described the disorder in this breed. They are lameness, reluctance to jump and a stiff stilted walk. The list also includes short misshapen lower limbs, swelling above the back paws, and short thick inflexible tails.[5]
The three-minute check
Run the tail gently through your fingers
It should feel supple along its whole length and move easily at the base. The CFA asks owners to check tail flexibility frequently, because stiffness can be an early sign of trouble.[6]
Pause if: The tail feels short, thick, rigid, or the kitten objects to it being handled.
Watch the kitten walk away from you
You want a loose, easy gait. A stiff stilted walk is one of the original recorded signs.[5] Do this on a floor, not a carpet, and give the kitten a moment to settle first.
Pause if: Short choppy steps, a hind-leg limp, or a bunny-hopping motion.
Watch it jump up and, more importantly, down
Healthy kittens fling themselves off furniture without thinking. Reluctance to jump and difficulty getting on and off furniture are both listed signs.[7]
Pause if: It hesitates at a small height, or lands and then pauses.
Feel the lower legs and paws
Compare left with right. The bones of the paws and lower legs are where this disorder shows first, and swelling just above the back paws was described in the original cases.[5]
Pause if: Thickening, puffiness, obvious asymmetry, or splayed toes.
Ask to see both parents move
This is the check people skip and it is the most informative one, because the parents are older. Watch them walk and jump, and handle their tails the same way.
Pause if: You are not allowed to see them, or only one is available with no explanation.
One thing worth knowing, because it comes from the registry that actually supports the breed. The CFA show standard disqualifies a cat with a kinked tail, a shortened tail, or a tail that cannot flex because the vertebrae are abnormally thick.[6] Those are signs of this disorder. The show ring already turns those cats away, which tells you the tail check is not a fussy detail.
Short answer
The window stays open for roughly two more years. In Australian veterinary records, Scottish Folds diagnosed with the joint disorder were generally under 30 months old. A kitten that checks out at twelve weeks has not been cleared, it has simply not shown anything yet.
This is the single most useful thing a buyer can know, and almost nobody says it. The disorder is progressive, meaning it develops over time rather than being fully present at birth. That is why one study of folded cats averaging 2.3 years old found only a small minority with changes on x-ray.[8] Cases diagnosed in general practice clustered under 30 months.[4]
The practical consequence is about planning rather than worry. Budget for the possibility of x-rays and long-term pain management in the first three years. Agree with the seller, in writing, what happens if the kitten develops signs. And keep watching for the things in the checklist above as your cat grows, because you are the person best placed to notice the change.
Short answer
Four questions, and the first one carries most of the weight. Ask for the TRPV4 test result for both parents, including the straight-eared one. A seller who tests will produce certificates. A seller who talks about tested lines is telling you they did not test this cat.
Four questions worth asking
Can I see the TRPV4 test result for both parents?
A good answer: A certificate for each cat by name, showing how many copies of the variant it carries.[9] Not a line, not a cattery, not a verbal assurance.
Was this litter from a folded cat and a straight-eared cat?
A good answer: Yes, and they can tell you which parent was which. Pairing two folded cats risks kittens with two copies, who get the severe form of the disease early.[9]
How do you know the straight-eared parent is genetically clear?
A good answer: Because it was tested. Researchers found that 7 of 55 carriers, about 12.7 percent, had folded ears as kittens and straight ears as adults, so ear shape alone does not settle it.[10]
Have the parents been x-rayed, and what happens if signs appear?
A good answer: A clear account of what was imaged and when, plus a written agreement about support if your kitten develops joint disease inside the first few years.
Answers that should slow you down
Short answer
We do not publish a price range for this breed, deliberately. On most breeds a higher price can reflect health testing. Here it cannot, because every folded kitten carries the variant no matter what it cost. The costs worth planning for come later.
Plenty of pages will give you a confident-looking price ladder for this breed, sorted by ear fold, coat and pedigree. None of them cite anything, because no registry or veterinary body publishes purchase prices. We would rather tell you what the money genuinely buys and what it does not.
What a higher price can buy: a seller who tested both parents, kept records, raised the litter properly and will answer the phone in two years. What it cannot buy: a folded kitten without the variant. That cat does not exist.
The costs most buyers underestimate are the ones after the sale, and they are ongoing rather than one-off. International Cat Care is direct about this. There is no treatment for the disease itself, and what a vet can do is manage the cat's pain with appropriate medication.[7] That means monitoring, x-rays if signs appear, and long-term pain control. It also means changes at home, such as low-sided litter trays, raised food and water bowls, and ramps up to favourite sleeping places.[7]
None of that is a reason to walk away by itself. It is a reason to go in with the arithmetic done rather than discovering it at year three.
Short answer
If what you love is the round face, the dense coat and the calm nature, you can have all of it without the fold gene. A Scottish Straight comes from the same litters and did not inherit the variant. It is the same cat with ears that stand up.
A folded cat mated to a straight-eared cat produces both kinds in the same litter. The straight-eared kittens are registered as Scottish Straights, and on this gene the difference is real rather than cosmetic. In the blinded x-ray study, all 10 folded cats carried the variant and none of the 12 straight-eared cats did.[3]
This is also where the UK registry lands. The GCCF will not register Scottish Folds, listing the breed as ineligible because of known serious health problems, and it points people towards the British Shorthair instead.[11] Both routes are listed on Petmeetly. If you take the registry's advice, the British Shorthair buying guide sets out the health tests to ask for.
One caveat, and it is the same one the breeders face. Ear shape is not a genetic test. If you specifically want a cat without the variant, ask for the straight-eared kitten's own TRPV4 result rather than taking the ears as proof.[10]
If you would rather take on a grown cat whose joints you can already see working, adult Scottish Folds get rehomed too. We keep a separate page for Scottish Fold adoption.
Short answer
In most places yes, but that is changing and you should check rather than assume. Since 1 January 2026 it has been illegal in the Netherlands to keep, buy, sell or breed a cat with folded ears. Microchipped cats born before that date are exempt.
The Dutch measure was announced on 31 October 2025 by the ministry responsible for agriculture and nature, and it covers folded-ear and hairless cats. Breaking it carries a fine of 1,500 euros. The Union of European Veterinary Practitioners backed it, with its president calling it a step towards protecting cats from avoidable suffering.[12]
Australia has its own restriction on the breeding side. The RSPCA notes that affected Scottish Folds cannot be bred in Victoria. The rule sits under the Prevention of Cruelty to Animals Act 1986 and its code of practice on breeding animals with heritable defects.[13]
We are not going to publish a country-by-country table, because rules are moving and a stale table would be worse than none. Check your own national and local rules before you buy, and check them again if you plan to move or travel with the cat.
Not in the sense buyers usually mean. The folded ear is caused by a change in a cartilage gene, so every folded kitten carries at least one copy of it. What varies is how much joint disease that copy causes, and that varies a great deal. Plenty of folded cats live comfortably for years.
Start with the tail. It should feel flexible along its whole length, and the CFA tells owners to check this regularly because stiffness can be an early sign of trouble. Then watch the kitten walk and jump, and feel the lower legs and paws for thickening or swelling.
Less than most buyers assume. In Australian veterinary records covering 1,131 Scottish Folds, cats clinically diagnosed with the joint disorder were generally under 30 months old. That is well over two years after a kitten goes home, so a clean check at twelve weeks does not close the question.
Ask for the TRPV4 genetic test result for both parents, not one of them and not the line. Ask which mating produced the litter. Ask whether the parents have been x-rayed. A seller who tests and keeps records will answer all three without hesitating.
Because straight ears are not proof. Researchers following insured Scottish Folds found that 7 of 55 carriers, about 12.7 percent, had folded ears as kittens and straight ears as adults. If both parents carry a copy, one kitten in four can inherit two copies and get the severe form of the disease.
We do not publish a price range for this breed and we would treat any page that does with caution. No registry or veterinary body publishes purchase prices. On this breed the price also tells you nothing useful about health, because every folded kitten carries the variant regardless of what it cost.
No. International Cat Care states there is no treatment for the disease itself, and that a vet can manage the pain with appropriate medication. Practical changes at home help too, such as low-sided litter trays, raised bowls and ramps up to favourite sleeping places.
On this specific gene, yes. A Scottish Straight is a cat from Scottish Fold breeding that did not inherit the fold variant. In one blinded study none of the 12 straight-eared cats carried it, while all 10 folded cats did. The body, coat and temperament are the same.
Reluctance to move or jump, a stiff walk, difficulty getting on and off furniture, and short or misshapen lower limbs. Because the pain builds slowly, it can also show up as hiding more, grooming less, eating less, or missing the litter tray when climbing in starts to hurt.
That depends on where you live, and it has changed recently. Since 1 January 2026 it has been illegal in the Netherlands to keep, buy, sell or breed cats with folded ears. Microchipped cats born before that date are exempt. Check your own jurisdiction before you commit.
The well-documented problem with this gene is joints and bone, not ears. The fold itself is a cartilage defect in the ear flap, and the same defect affects the paws, lower legs and tail. Clean the ears as you would for any cat and raise anything unusual with your vet.
That is genuinely your call, and you should know that the major welfare bodies say no. Cats Protection advises against getting one and is campaigning for a breeding ban. If you go ahead, buy from someone who tests both parents and tells you plainly what your kitten is carrying.
Sources
Fact-checked against peer-reviewed feline genetics and radiology research. Sources also include the published guidance of the CFA, the GCCF, International Cat Care, Cats Protection and the RSPCA, plus the Dutch keeping ban of January 2026.
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