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Dwarf Cats: Everything You Need To Know About Feline Dwarfism

Dwarf cats, commonly referred to as munchkin cats, are nothing short of adorable on paper. Dwarf cats’ tiny, little legs induce a chorus of “awwws” from just about any human.

Famous dwarf cats who’ve turned into memes, like Lil Bub and Grumpy Cat, only add to the insane popularity of the munchkin cat phenomenon.

Unfortunately, something as cute as a dwarf cat often comes at a price. Those cute looks are the result of genetic deformities. Breeders sometimes intentionally breed these deformities into kittens to cash in on their cuteness.

Here’s everything you need to know about dwarf cats.

What Is Feline Dwarfism?

In order to fully understand the controversy behind the munchkin cat trend, it’s important to understand how dwarf kitties are created in the first place. Dwarfism in cats is technically a genetic mutation, and not one that is simply cute.

There are three types of feline dwarfism: osteochondrodysplasia, pituitary dwarfism, and selective dwarfism.

Each of these types of dwarfism can produce the sought-after stout legs and smushed face you commonly see in munchkin cats. However, all types of feline dwarfism come with potential health hazards, as well.


dwarf cat
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Osteochondrodysplasia is a condition in which the growth and development of both bone and cartilage is abnormal, resulting in a lack of healthy bone growth as well as skeletal deformities. Often, this abnormal bone growth will produce a dwarf cat with short limbs and a normal sized body.

Osteochondrodysplasia can cause other abnormalities of a dwarf cat’s stature aside from stubby legs. Munchkin cats with osteochondrodysplasia can have curved spines, bow-legged stances, and slightly-bigger-than-usual heads.

Dwarf kittens or cats with this type of dwarfism have the potential for other health problems. These include neurological issues, mobility issues, heart and lung defects, and other physical abnormalities, such as the aforementioned curved spine, that can be severely limiting to a dwarf cat.

Scottish Folds are known to be susceptible to this type of feline dwarfism.

Pituitary Dwarfism

munchkin cat looking in drawer
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Munchkin or dwarf cats with pituitary dwarfism are incredibly rare. This type of dwarfism appears in cats whose pituitary glands cannot produce enough growth hormone (GH).

The pituitary gland of this type of dwarf cat may not be able to produce GH due to cysts, underdevelopment of the gland, tumors, or an infection. When cats have this particular type of dwarfism, there are, unfortunately, a myriad of health issues that come along with it.

Kittens affected by pituitary dwarfism can’t grow at a healthy rate and will look like runts of their litters. These cats will also have softer teeth and retain their soft kitten hair longer due to the lack of GH. Pituitary dwarfism may lead to a slower mental development, as well.

Since so many vital organs are affected by the growth hormones created by the pituitary gland, kittens with pituitary dwarfism will not be able to lead a long life. Often, when cats have pituitary dwarfism, they also have other hormone imbalances like hypothyroidism and hypoadrenocorticism.

Selective Dwarfism In Cats

munchkin cat looking out window
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As you may have guessed by the name, selective dwarfism in cats is when breeders purposefully seek out the genetic mutation to create that adorable, Basset Hound-esque stature of the dwarf kitten.

Many consider these munchkin cat breeders unethical, as they may be jeopardizing the cats’ health and running the risk of breeding cats with incredibly short life spans just to make a profit.

While the rise of unethical dwarf kitten breeders is somewhat new, the controversy behind the breed is not. In 1994, TICA officially recognized the munchkin cat as a breed.

Many animal advocates beg the public not to support unethical dwarf cat breeders. Instead, they ask those who feel strongly about getting one to look for rescue dwarf kittens.

Cat associations like Cat Fanciers Association (CFA) and the American Cat Fanciers Association officially do not recognize the breed in hopes of not contributing to unethical breeding.

Do you have a munchkin cat or a cat with feline dwarfism? Has your dwarf cat had any health issues? Then let us know in the comments below!

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