Chihuahua
Toy Group (AKC) · Mexico — developed from ancient companion dogs such as the Techichi kept by the Toltec and Aztec civilizations. · Toy
Also known as: Chi, Mexican Chihuahua

Breed Group
Toy Group (AKC)
Size
Toy
Height
5-8 inches at the shoulder
Weight
Under 6 pounds
Life Expectancy
14-16 years, often living a long life with proper health care, though sensitive to dental disease and cardiac issues.
Origin
Mexico — developed from ancient companion dogs such as the Techichi kept by the Toltec and Aztec civilizations.
Energy Level
Moderate — small bursts of energetic play satisfied by short indoor games and short daily walks.
Trainability
Moderate — smart and eager to please, but can be stubborn and possess a strong independent streak; requires consistent, positive reinforcement.
Description
The Chihuahua is the ultimate purse dog, famous for being the smallest breed in the world yet possessing one of the biggest personalities. Recognized by their distinctive apple-shaped heads, large luminous eyes, and enormous erect ears, these tiny dogs are brimming with confidence, loyalty, and charm. They make deeply devoted companions for apartment dwellers and single owners alike.
Key Features
Apple-shaped head or deer-like head, prominent luminous dark eyes, very large erect ears in proportion to the small body, and a compact, graceful frame.
Coat Type
Short-haired (smooth) variety with a smooth, glossy coat, or long-haired variety with a soft, slightly wavy coat and feathering on ears and legs.
Coat Colors
Wide range of solid colors including fawn, black, white, chocolate, and grey, as well as tri-color, brindle, merle, and spotted markings.
Temperament
Lively, alert, proud, and fiercely loyal. Often possess a 'big dog' attitude, can be vocal and suspicious of strangers, but deeply affectionate with owners.
Good with Children
Fair — best with older, respectful children due to their tiny and fragile frame which makes them vulnerable to injury.
Good with Other Dogs
Fair — generally good with other Chihuahuas or dogs of similar size, but can be fearless and provocative around large dogs if not properly socialized.
Grooming Needs
Low to moderate — smooth coats need weekly brushing and occasional baths; long coats need brushing a few times a week to prevent tangles. Regular nail trims and teeth brushing are essential.
Exercise Requirements
Low — short daily walks and indoor play are plenty to keep them healthy and mentally stimulated.
Health Considerations
Prone to patellar luxation, tracheal collapse, dental issues, and heart murmurs. Regular dental cleanings and veterinary check-ups are crucial.
Living Conditions
Exceptional apartment dogs. They are sensitive to cold weather due to their tiny size and lack of heavy body fat, requiring sweaters in chilly climates.
History & Origin
Named after the Mexican state of Chihuahua where they were first discovered around the mid-19th century, their ancestry traces back to the Techichi, a companion dog favored by the Toltec civilization in ancient Mexico.
Interesting Facts
Chihuahuas have the largest brain-to-body size ratio of any dog breed. They are also famously featured in pop culture movies like 'Legally Blonde' and fast-food advertising campaigns.
Similar Breeds
Russian Toy, Papillon, and Miniature Pinscher, though the Chihuahua's unique apple-shaped head and distinctively large erect ears set it apart.