Mexican Hairless Dog (Xoloitzcuintli)

The Xoloitzcuintli is arguably the most ancient dog on our planet to have survived in almost unchanged form. This is even attested to by the Guinness World Records. In ancient burial sites across Mexico and Central America, archaeologists have repeatedly discovered clay figurines of these dogs, known as “Colima dogs,” dating back to 3000 BC.

The etymology of the name is complex but fascinating. The Aztecs called these dogs “Xoloitzcuintli,” combining two words. “Xolotl” is the name of the Aztec god of lightning and death, considered the ruler of the realms of the living and the dead. The second part, “itzcuintli,” simply translates to “dog.” Therefore, the literal translation is “Dog of the god Xolotl.”

Since ancient times, these animals have been considered sacred. Legend says that the god Xolotl created this dog from a “splinter of life”—the same material from which all humanity was created—and gifted it to people. The covenant was simple: the dog must guard the human during life, and after death, guide their soul through the nine rivers of the underworld, Mictlan. This is why Xolos were often buried alongside their owners.

The Xoloitzcuintli made it into the Guinness World Records not just for its antiquity. It also earned the title of the warmest mammal in the world. Due to the lack of fur, heat loss from the skin occurs directly, and the dog feels hot to the touch (although its body temparature is the same as other dogs – about 100-102°F). Thanks to this tactile feature, they have long been considered therapeutic, used as living heating pads.

The history of the breed is tragic. There was a time when indigenous people raised Xolos for food. After the Spanish conquistadors colonized Mexico, they began a mass extermination of local dogs. First, as a meat source during famines, and second, as part of the pagan culture they sought to eradicate. The breed found itself on the brink of total extinction, preserved only in remote mountain villages where civilization had not reached.

The revival began only in the 20th century. A huge role in popularizing the breed was played by the famous artist Frida Kahlo and her husband Diego Rivera. They made the Xolo a symbol of Mexican identity, depicting them in their paintings. In 1954, Norman Pelham Wright organized the “Xolo Expedition,” heading into remote Mexican villages to find purebred representatives to restore the population. Today, dogs of this breed are a national treasure of Mexico. In 2008, after a long hiatus, the Xolo made a triumphant return to the registries of major kennel clubs.

The appearance of a Xolo is a mix of primitive grace and alien aesthetics. It is a harmoniously built dog that never looks coarse or overly heavy.

Varieties by Size

The uniqueness of the breed lies in the fact that it exists in three size variations, allowing you to choose a pet for any living condition:

• Standard: Height at the withers from 18 to 24 inches (46-60 cm). These are serious dogs that can perform guard duties.
• Intermediate (Miniature): Height from 14 to 18 inches (36-45 cm). The ideal balance between a protector and an indoor dog.
• Toy (Miniature): Height from 10 to 14 inches (25-35 cm). A wonderful companion for small apartments that still possesses a robust psyche.

Hairless and Coated: Genetic Roulette

Few people know this, but a single Xolo litter can produce both completely hairless puppies and puppies covered in short fur. This is linked to the function of the FOXI3 gene. Hairless dogs are elegant with well-developed muscles. Their skin is thick, elastic, and hot to the touch.

Exterior Features:

• Head: “Wolf” type, with a broad, wedge-shaped skull. The transition from forehead to muzzle is smooth but noticeable.
• Ears: Large, thin, resembling bat ears. In an excited state, they always stand upright.
• Eyes: Almond-shaped, color varies from yellow to black. The gaze is intelligent and penetrating.
• Teeth: A unique feature of hairless Xolos is that they often lack premolars, and sometimes even incisors. This is genetically linked to the absence of hair and is not considered a defect for the hairless variety. However, coated individuals must have a full set of teeth.
• Skin and Coat: In hairless individuals, the presence of a “Mohawk” – coarse hair on the head – is permissible, as well as a little hair on the paws and tail. Skin color can be: black, gray (graphite), liver, or bronze.

Xoloitzcuintli are dogs with high intelligence, but their minds differ from service breeds like German Shepherds. This is a “primitive” breed, which means strong instincts for self-preservation and the ability to make independent decisions.

• One-Person Dog: They are extremely devoted to the family but often choose one person whom they consider the “center of the universe.” A Xolo will follow you like a shadow, trying to be in physical contact at all times.
• Distrust of Strangers: They are natural-born guardians of their territory. They won’t jump for joy at every guest. They treat strangers with suspicion, behave with restraint, and can display an active defensive reaction if threatened.
• Tactile Nature: Xolos particularly love being petted and caressed – they are extraordinarily sensitive to the warmth of human hands. This is the ideal dog for people who need emotional support.
• Activity at Home: In an apartment, adult Xolos behave calmly and with dignity. They won’t bark aimlessly or destroy furniture if they get enough exercise outside.

Despite their exotic appearance, the Xolo is a robust breed with strong immunity, shaped by centuries of natural selection. It is belived that hairless Mexican dogs can normalize their owner’s blood pressure with their warmth; however, Xolos themselves are still prone to some specific problems.

Dermatological Problems

The skin is both the weak point and the pride of the breed. The most frequent issues are:

• Juvenile Acne: Before the age of 8-10 months, a puppy’s skin may break out in pimples. This is a hormonal process that usually passes on its own. Do not pop them!
• Sunburn: Light patches on the skin burn faster than dark areas.
• Dryness and Peeling: Occurs when skincare products are chosen incorrectly.

Dental System

As already mentioned, missing some teeth is normal for hairless dogs (a genetic link to ectodermal dysplasia). However, the teeth that are present need thorough care, as they are prone to early tartar buildup.

Caring for a Mexican Hairless Dog is more like caring for a human than an animal. Here are the main rules to help keep the skin healthy:

1. Bathing: You shouldn’t bathe a Xolo too often so as not to wash away the protective oils. Once every 2 weeks using mild shampoos is sufficient (products for sensitive baby skin can be used).
2. Moisturizing: The skin needs to be regularly applied with oil or lotion. Almond, olive, or coconut oil works best. Vitamin A or E in an oil solution can also be used. Important: do not apply oil before going out in the sun—this will lead to burns (frying effect).
3. Sun Protection: In summer, be sure to use sunscreen (SPF 30-50) formulated for dogs or hypoallergenic kids’ sunscreen.
4. Exfoliation: Once a month, you can perform a light scrub with a soft sponge to remove dead skin cells and prevent clogged pores.
5. Ears: Xolos have large ears where dust accumulates quickly. Wipe them with a cotton pad once a week.

Winter Wardrobe: This is not a fashion statement, but a necessity. The Xolo has no thermal insulation. At temperatures below 50°F (10°C), the dog needs a sweater, and in freezing weather, a warm jumpsuit covering the neck and belly. It is also advisable to protect the paws with special booties or wax.

Xoloitzcuintlis are smart but sometimes stubborn. They quickly learn to open doors, refrigerators, and find weak spots in the fence. Xolos require early socialization. Your task is to introduce the puppy to the noise of the city, other dogs, and people from the very first days.

Adhere to the following principles during training:

• Positivity Only: Harsh methods will lead to the Xolo shutting down or becoming aggressively fearful. They are very sensitive to tone of voice.
• Food Motivation: Xolos generally love to eat, so training with treats works best.
• Variety: They quickly get bored of repeating the same command 20 times. Keep sessions short and interesting.

Xolos have a fast metabolism because the body spends a lot of energy keeping warm. Therefore, they eat slightly more than coated dogs of a similar size. However, they are prone to gaining excess weight, which ruins their elegant figure and puts strain on the joints.

Predisposition to Allergies:
Xolos often react to chicken, beef, and grains (wheat, corn). It is recommended to choose holistic or super-premium class foods based on lamb, rabbit, or fish. If you choose a natural diet, stick to the proportion: 70% meat, 30% vegetables and healthy additives.

Xoloitzcuintlis are often confused with other exotic dogs. However, the difference between them is substantial both in origin and character. If you are interested in other ancient breeds of the so-called “primitive type,” we recommend looking at the Basenji (the barkless dog) or the refined and aristocratic Pharaoh Hound.

There are other hairless breeds in the world, but the genetics of their “nakedness” can differ. It is worth knowing the difference between the Xolo and the Peruvian Hairless Dog (its closest relative), or comparing them with the popular Chinese Crested Dog, which has a completely different body structure. There is also the unique American Hairless Terrier – the only hairless breed that does not suffer from the teeth and skin problems typical of ancient species.

• Cartoon Star: The character Dante from Pixar’s popular movie “Coco” is a Xoloitzcuintli. The filmmakers very accurately conveyed the dog’s habits and appearance, including the funny tongue that hangs out due to missing teeth.
• Sacred Food: Sadly, the Aztecs considered the meat of these dogs a delicacy and believed that by consuming it, they received magical protection. Today, of course, this is strictly forbidden.
• Four-Legged Doctor: In Mexico, it is still believed that sleeping in an embrace with a Xolo helps with arthritis, stomach pains, and insomnia.

Is it true that Xoloitzcuintlis are completely hypoallergenic?
No, this is a myth. Although they have no fur (the main accumulator of allergens), allergies can be caused by dander (skin particles) or the animal’s saliva. Before buying, be sure to interact with an adult dog.

Is it hard to housebreak a Xolo?
Xolos are naturally very clean. However, during the cold season, they may refuse to go outside. Many owners of miniature Xolos successfully train them to use pee pads at home.

Do they get along with cats?
Yes, if the dog grew up with a cat from puppyhood. But remember their hunting instincts: a strange cat on the street can become an object of pursuit.