Got a Chihuahua? Check your pet with Pawcode
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Dogs
Chihuahua
The world's smallest dog with the biggest attitude.
The Chihuahua is the smallest recognised dog breed, named after the Mexican state where it was rediscovered. Bold, alert and fiercely devoted to its person, it packs a huge personality and a surprisingly long lifespan into a tiny, portable frame.
OriginMexico
SizeToy (very small)
Life span14–16 years
Weight1.5–3 kg (3–6 lb)
CoatSmooth (short) or long coat
Temperament & personality
- Bold
- Alert
- Devoted
- Spirited
Chihuahuas are confident, sometimes feisty little dogs that bond intensely with one person and can be wary or snappy with strangers if not socialised. They are alert watchdogs that bark readily, and they dislike cold. With early socialisation and consistent boundaries they are affectionate, clever and highly portable companions.
At a glance
Activity level2 / 3
Affection3 / 3
Shedding1 / 3
Grooming needs1 / 3
Vocalness3 / 3
Scale: low to high (1–3)
Grooming & care
Grooming is minimal — smooth coats need occasional brushing, long coats a few times a week. Their small size means they chill easily (a sweater helps), are fragile around rough play, and are prone to dental crowding, so daily tooth care and a good diet matter. Guard against "small dog syndrome" with proper training.
Common colours
- Fawn
- Black
- Chocolate
- Cream
- White
- Merle
- many patterns
Good with
- Families
- Children
- Other pets
- First-time owners
- Apartment living
Health tendencies to watch
Every breed has predispositions. These are things worth discussing with your vet — not diagnoses.
- Dental disease due to crowded teeth in a tiny jaw
- Patellar luxation (slipping kneecaps)
- Hypoglycaemia in very small puppies
- Molera (soft spot) and hydrocephalus risk in some lines
Informational only. Pawcode is not a veterinary service and does not replace professional advice.
Fun facts
1
They have the longest lifespan of almost any dog breed relative to size
2
They may have descended from the ancient Techichi dogs of the Toltec civilisation
3
Despite their size they often see themselves as the biggest dog in the room
Frequently asked questions
Are Chihuahuas good with children?
They are best with gentle, older children. Their fragile size and bold temperament make rough handling risky for both dog and child.
Why do Chihuahuas shake?
They often tremble from cold, excitement or stress due to their small size and high metabolism; persistent shaking warrants a vet check.