Health and screeningsAugust 28, 2026· 6 min read

PKD in cats: what to ask the breeder

PKD in cats: what questions to ask the breeder, what breeding documents to request, especially in the breeds concerned, without a diagnosis…

By Pedibase

PKD in cats: what to ask the breeder

PKD, or polycystic kidney disease, is a topic often mentioned in cats, especially in certain long-haired breeds or in lines close to the Persian. It’s not a word to wave around to scare people. It’s a selection point to document. You ask the breeder for facts. You leave medical follow-up to your veterinarian.

The topic comes up frequently for the Persian. It can also be discussed in other breeds depending on the lines, for example a British Shorthair or, depending on the breeding program’s work, other cats. A Maine Coon doesn’t have the same typical list: the breeder must say what really concerns their breeding cats, without copying a universal list.

Adult Maine Coon with long coat

What you can ask

Ask whether the breeding cats of the litter have a PKD genetic test, or another examination the breeding program uses, and on what date. Ask to see the document: laboratory, cat’s identity, result. A “PKD tested” badge on an ad is not a report.

Ask about the breeding logic. If a test exists, how are the two parents paired? Is a cat with a given status excluded from breeding? The breeder should be able to say it in one sentence. If they can’t, the test doesn’t guide selection. It decorates the ad.

Reading a result without making it a destiny

A genetic status refers to a mutation being looked for. It does not, by itself, describe a kitten’s life. It doesn’t say what your veterinarian will observe later. Note the document, check the name and identification, then keep it. Clinical interpretation is not your role on the day of the visit.

Be wary of phrases like “healthy line forever” without paperwork. Also be wary of a result in another cat’s name, or a test that is too old attributed to the whole cattery. Each breeding cat of the litter matters. A tested cousin does not document the father.

British Shorthair with dense coat

What the breeder must not do

The breeder does not have to make a diagnosis about your future kitten. They do not have to prescribe a treatment. They do not have to guarantee the absence of any kidney problem. They have to show their selection and pass on the transfer documents. This limit protects everyone.

On your side, don’t demand a genetics course. Demand clarity. If the breed is concerned and the breeding program has no documents, ask why. A reason linked to lines tested differently is worth hearing. A total lack of an answer points toward another cattery, via the breeder search.

Persian kitten, full coat

Cross-check with the complete file

PKD is only one layer. You also look at the living place, the mother, socialization, identification, the transfer certificate and the LOOF if it is involved. An elegant test in a poor place is not enough. A nice visit with no documents on a central topic isn’t either.

Once the kitten is with you, follow-up belongs to your veterinarian. The breeder can indicate the current diet and habits. They can remain reachable. They do not replace a consultation. This separation avoids crossed advice and misunderstandings.

Colourpoint-coated cat, blue eyes

Frequently asked questions

Do all purebred cats have to have a PKD paper?

No. The topic is more frequent in certain breeds and lines. Ask the question for the breeding program you visit. If the test is not relevant according to the breeder, they must say why. If the topic is central and no document exists, it’s an element of choice.

Is one “negative” parent enough?

Ask for the status of both parents and the breeding rule. A single document, on its own, provides little information. Two readable documents, plus a culling rule, provide more. It remains selection information, not a guarantee about the kitten.

Can I have the kitten tested right away?

That’s a question for your veterinarian, depending on age and the usefulness of the test. It’s not a condition this article imposes. On the day of transfer, your priority is the breeding cats’ file, identification, and the certificate.

Common mistakes

  • Taking a site badge for a laboratory result.
  • Applying PKD to all breeds without listening to the breeder.
  • Asking the breeder for a kidney prognosis on the kitten.

Key takeaways

On the topic “PKD in cats: what to ask the breeder”, three reflexes are enough: visit, read the documents, decide without pressure. Then link your project to concrete pages, for example persian, maine coon, british shorthair, then compare the operations on the breeder search. A considered choice is also judged after the handover, when everyday life begins.

Keep a written record of the answers, paperwork timelines, and identification. If a point remains unclear, ask for clarification before paying a deposit. It’s better to wait for another litter than to force an incomplete file.

Also prepare the home: real rhythm, other animals, time available, first veterinary appointment. The breeder can tell you the current diet and the habits already established. Your veterinarian remains the contact for medical follow-up. This separation of roles avoids misunderstandings.

Finally, reread the transfer certificate calmly. Check that the name, identification, and origin status match the animal handed over. A discrepancy is discussed right away, not three weeks later. This simple reflex protects both the buyer and the serious breeding program.

How to use this guide

Write down the questions that really concern your project, then tick them off during the visit. Keep the answers in writing. Reread them the next day, with a clear head. A detail that seemed secondary on site sometimes becomes the decisive criterion once you’re back home.

If you hesitate between two breeding programs, compare only facts: documents shown, living place, clarity of follow-up, consistency between the first message and the visit. The rest is noise. You can also reread the breed sheet to check that your daily life still matches the adult dog or cat, not only the young one from the litter.

Pedibase is used to link a breed to breeding programs you can visit. Use it to prepare contact, not to replace the visit. No web page can sense the smell of a facility, the behavior of a mother, or the readability of an original document.

Before deciding

Go over your notes one night later. Check that your household’s rhythm still matches the adult animal, not only the young one seen on the day of the visit. Reread the photographed documents. A detail read incorrectly is easier to correct before the deposit.

If a single answer remains unclear — identification, origin, screening of the breeding cats, age at handover — send a written message again. A clear answer closes the topic. An answer that backs away once again is often enough to choose another breeding program.

Also keep a plan B: another litter, another month, another breeding program. This plan B avoids forcing a file out of impatience. The right moment is when the papers, the place, and your daily life align, not when an ad says “last available”.

To conclude on “PKD in cats: what to ask the breeder”, keep a simple method: one visit, readable documents, a written transfer, consistent identification. The rest is discussed with the breeder and, for follow-up, with your veterinarian. This method avoids decisions made only on a photo, a price, or an ad urgency.

Breeds related to this article

Discover the full pages for the breeds mentioned in this article.