Chihuahua
Five pounds. Infinite attitude. Absolutely certain it’s in charge.
Chihuahuas carry a big-dog attitude in a tiny frame — bold, feisty, and often fiercely loyal to one primary person. That intense bond can tip into possessiveness, and without socialization, wariness toward strangers and other dogs can turn into real nippiness.
Chihuahuas are long-lived for a dog, typically 14–16 years. Patellar luxation and severe dental crowding are both common given their small jaw structure. Heart issues, including mitral valve disease, and hydrocephalus in some lines are documented risks. Puppies are prone to hypoglycemia, and their small, fragile bones create real fall-related injury risk.
Small, frequent meals matter especially for puppies to prevent hypoglycemic episodes. Dental care is a significant ongoing consideration given how crowded their small mouths get. A quality small-breed formula suits adult Chihuahuas well.
This breed isn't always a great match for very young kids given their fragility and low tolerance for rough handling — falls and accidental injury are real risks with small children. Chihuahuas often bond strongly to one person and can be nippy toward others without proper socialization.
The tiny size disguises a genuinely bold, sometimes territorial dog, and people underestimate how much training and socialization this breed actually needs because of how small it is. Skip that work and you end up with a small dog carrying outsized behavioral problems.
How much exercise does a Chihuahua need?
The Chihuahua has low physical activity needs and moderate mental stimulation needs.
What size is a Chihuahua?
The Chihuahua is a small breed.
How much grooming does a Chihuahua need?
The Chihuahua has low grooming needs.
Is a Chihuahua easy to train?
The Chihuahua is moderately trainable.
Is the Chihuahua a good choice for first-time owners?
Yes — the Chihuahua is generally considered a good fit for first-time dog owners.
Is a Chihuahua apartment-friendly?
Yes — the Chihuahua can adapt well to apartment living.
How long does a Chihuahua live?
The Chihuahua typically lives 14–16 years.
General references for further reading. For your own dog, always check with your veterinarian.