Munchkin's short legs come from a dwarfism gene, breeding two Munchkins together kills roughly a quarter of the resulting kittens before birth because a double dose of the gene is lethal in the womb, and the Cat Fanciers' Association, Britain's GCCF, and the Fédération Internationale Féline all refuse to recognize the breed specifically because they consider deliberately propagating that gene a welfare problem.
Health tests to ask the breeder for
There is no CHIC program for cats. These are the DNA and screening tests that the testing laboratories and cat health bodies name for the Munchkin. A breeder who tests will show the certificates; a DNA result of "clear" for one variant is not a guarantee against the disease.
- Ragdoll HCM (MYBPC3 R820W) DNA test (UC Davis VGL lists Munchkin among breeds carrying it) screens for hypertrophic cardiomyopathy risk variant
- PRA-rdAc (CEP290) DNA test (UC Davis VGL / Langford Vets) screens for late-onset progressive retinal atrophy / blindness (UC Davis VGL lists the Munchkin among rdAc-affected breeds)
When to spay or neuter: by five months, whatever the breed. That is the one answer the AVMA, the feline practitioners and AAHA all give, and the spay and neuter page has why, and the two weeks after.
There is no DNA test for the short-leg trait itself, and the breed is not on the Langford Vets breed-disease list.
Sources: vgl.ucdavis.edu · vgl.ucdavis.edu. Checked September 2026. Check a breeder has the questions.
Adopt a Munchkin near you
Shelters and rescues list Munchkins and Munchkin mixes on Petfinder. Enter a ZIP code to see who is waiting within 100 miles.
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Living with a Munchkin
Aside from the legs, Munchkins act like any other playful, people-friendly cat — they run, play and jump, just from a lower vantage point, and often sit upright on their haunches like a prairie dog to see over things. The real issue isn't day-to-day care, it's the ethics of the gene itself: three major registries won't recognize the breed at all, and breeding two Munchkins together carries a real chance of producing kittens that don't survive.
Health you should know about
- Lethal in double dose — the short-leg mutation (chondrodysplasia) is autosomal dominant; kittens that inherit two copies, roughly a quarter of those from two Munchkin parents, fail to develop and do not survive to birth.
- Lordosis (abnormal spinal curvature) and pectus excavatum (a sunken chest) — documented at increased rates in the breed by independent veterinary and genetics sources.
- Osteoarthritis risk from altered limb mechanics is disputed: TICA's own breed standard states the spine is unaffected and the cat is 'not prone to arthritis' with no impaired mobility, while independent veterinary and welfare-focused sources flag joint and mobility strain as a real, if debated, consequence of the shortened limbs.
Read the full Cat Care Guide first — costs, daily time, and everything a cat needs before you choose a breed.
Sources — 3 references
Last reviewed October 2026. 3 sources listed below. Written and maintained by Petdeals.io. General care information, not veterinary advice — for a sick animal, call a vet.