Chihuahua in profile, photographed outdoors

Chihuahua

  • Toy
  • Toy Group
  • Popularity rank 24

Charming, graceful, and a little sassy, the Chihuahua is a Toy breed with an outsized personality. Standing 5 to 8 inches and topping out near 6 pounds, this devoted lap dog bonds closely with its people.

Height
5 to 8
inches at the shoulder
Weight
2 to 6
pounds, adult
Life expectancy
14 to 16
years, median 15
Senior from
11.2
years, about

Senior starts in the last quarter of a breed's expected lifespan, following the 2019 AAHA canine life stage guidelines. Individual dogs vary.

About the breed

Temperament
Charming, graceful, sassy
Coat
Smooth, short, medium
Origin
Mexico
Recognized
1904
Popularity, 2015 to 2025 Rank 24 in the latest ranking

2015: rank 28, 2016: rank 30, 2017: rank 32, 2018: rank 33, 2019: rank 35, 2020: rank 34, 2021: rank 37, 2022: rank 34, 2023: rank 32, 2024: rank 27, 2025: rank 24

2015 Lower is more popular 2025

The Chihuahua is a small breed with a big personality. Known affectionately as Chis, these dogs are loving with the people they trust and tend to bond closely with their families. They make fine companions and even finer lap dogs.

A member of the Toy Group, the Chihuahua tops out around 6 pounds and stands only about 5 to 8 inches tall. The breed is charming, graceful, and a touch sassy, loyal and loving with family, though it can be feisty and bark at unfamiliar people and dogs. They sometimes seem to forget how tiny they are.

The breed traces back to Mexico. Records suggest conquistadors in the 16th century found many small dogs in the Mexican state now known as Chihuahua. The breed became better known as a house pet around the early 20th century and earned formal recognition from the major US kennel registry in 1904.

Temperament and needs

Scored 1 to 5 for the breed overall. Individual dogs vary.

  • Affectionate with family4 out of 5
  • Good with young children1 out of 5
  • Good with other dogs3 out of 5
  • Openness to strangers2 out of 5
  • Playfulness4 out of 5
  • Watchdog and protective nature4 out of 5
  • Adaptability4 out of 5
  • Trainability3 out of 5
  • Energy level4 out of 5
  • Mental stimulation needs3 out of 5
  • Barking level5 out of 5
  • Shedding2 out of 5
  • Grooming frequency1 out of 5
  • Drooling1 out of 5

Care

The routines that matter most for this breed. Open one at a time.

Nutrition

Choose a high-quality food matched to your dog's life stage, whether puppy, adult, or senior, so it carries the nutrients the breed needs. A small-breed formula makes for easier chewing and usually includes serving-size guidance. Because every dog is different, monitor for weight gain, weight loss, and muscle loss to decide whether to offer more or less.

Some Chihuahuas put on extra weight easily, so watch calorie intake. Treats are useful in training, but too many add up, so give table scraps sparingly, if at all, and avoid cooked bones and high-fat foods. Learn which human foods are safe for dogs and which are not, and check with your vet about any concern with your dog's weight or diet.

Puppies do best with frequent meals, about three or four a day, to help keep blood sugar steady, depending on veterinary advice. Meals heavier in fat, protein, and complex carbohydrates also help here. For an older dog with a collapsing trachea, a raised bowl can help, since lowering the head to eat can narrow the airway and trigger coughing.

Some supplements may support the breed. Omega fatty acids serve the heart, brain, skin, and joints. Your veterinary team may also suggest dental chews or supplements as part of supporting oral health.

Grooming

The Chihuahua's smooth coat is fairly low-maintenance. Regular brushing, about once a week, helps manage moderate shedding and keeps the coat tidy, with a bath every so often depending on how active your dog is outdoors.

Teeth are the biggest part of the routine. Chihuahuas are prone to dental issues thanks to their small mouths and crowded teeth, so brush daily at home, and your vet may recommend dental treats and professional cleanings, sometimes more often and from an early age.

Trim the nails regularly. Chihuahua ears are pricked and stand upright, which lets air move through easily, so they tend to need little cleaning, if any. Their large eyes can get teary, so wipe gently once or twice a week to clear excess tearing or discharge.

Exercise

Small as they are, Chihuahuas are high-energy dogs that love to run and play, and they can usually get enough exercise in a very small space. Trotting around after their people, plus short indoor play sessions, is often enough. They do not need long walks or hard physical activity.

Keep sessions short and easy, and avoid overexerting your Chihuahua. If your dog is panting and struggling to keep up, it is time to pick it up and carry it home. For mental stimulation, give it the chance to go outside, sniff, and explore.

At dog parks, remember that unless they are with other small dogs, Chihuahuas are likely to be outmatched in size. Because they are often carried around and taken many places, they can develop separation anxiety, so a safe space at home, such as a small crate, plus plenty of toys, helps head off that stress.

Training

The Chihuahua is an alert little dog of high intelligence. The Chihuahua is eager to please and responds well to positive, reward-based training with treats or favorite toys, though it can be stubborn and like to get its way. Stay firm, patient, and consistent, and keep food rewards mindful of calories. That strong will can make house training harder than with some other breeds.

From the start, make clear that you are in charge, and never let a puppy do anything you would not accept in an adult. With the right approach, Chihuahuas can excel at obedience and other canine sports, and many enjoy performing tricks.

Temperament ranges from bold and curious to shy and timid, but Chihuahuas are typically bright and loving with family. They can show social anxiety around new people and animals and may bark when introduced. They do well with children and other pets when introductions happen properly in a controlled setting, and because of their small size, children should be supervised closely during play to avoid accidental injury.

Begin socializing a puppy right away, introducing new people, animals, and situations. This helps your little dog grow calm and confident through a long life.

Health conditions

16 conditions are documented for the Chihuahua.

A predisposition is not a diagnosis. Ask your vet which screenings make sense for your dog's age.

  • Congenital Cornification DisorderSkin & Connective Tissues
  • Dental DiseaseOther
  • Eye ProblemsEyes
  • Heart DiseaseHeart
  • HydrocephalusBrain and Spinal Cord
Show all 16 conditions Show fewer
  • HypoglycemiaMetabolic
  • Intervertebral Disc DiseaseBrain and Spinal Cord
  • Legg-Calve-Perthes DiseaseSkeletal
  • Neuronal Ceroid Lipofuscinosis 7Multisystem
  • ObesityMetabolic
  • Patellar LuxationSkeletal
  • Progressive Retinal Atrophy, crd4/cord1Eyes
  • Progressive Retinal Atrophy, prcdEyes
  • Reproductive IssuesOther
  • Spinocerebellar Ataxia with Myokymia and/or SeizuresBrain and Spinal Cord
  • Tracheal CollapseOther

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