Longevity
Life expectancy
The longevity of the Chihuahua is generally good and often exceeds that of many larger breeds. This life expectancy depends greatly on the quality of breeding, dental hygiene, preventive follow-up and the prevention of overweight. A well-maintained subject can remain lively for a long time, provided that exercise, thermal comfort and care are adapted with age.
Constitution
Is this a robust breed?
The Chihuahua is not fragile in the sense of a dog that is constantly ill, but its tiny size makes it more vulnerable to falls, clumsy handling and cold. Its day-to-day sturdiness relies on a safe environment, a measured diet, good dental prevention and balanced socialization. In good conditions, it often retains great vitality for many years.
Things to watch for
What to look out for
You must monitor particularly the gait, the mouth, breathing, the eyes and weight. Intermittent lameness, a repeated dry cough, marked bad breath, a refusal to eat, unexplained tremors or unusual fatigue should lead to consulting quickly. In the puppy, any episode of lethargy or potential hypoglycemia requires a rapid reaction.
Patellar luxation: Common in very small dogs, it can cause intermittent lameness or a hopping gait.
Hypoglycemia: In puppies and very small individuals, a drop in blood sugar can occur quickly in case of fasting, stress, or illness.
Hydrocephalus: This neurological condition is among the breed’s classic points of vigilance and justifies serious selection.
Epilepsy: Neurological disorders with convulsive seizures may appear in some predisposed individuals.
Eclampsia: In breeding females, this emergency linked to a drop in calcium can occur around whelping or nursing.
Heart diseases: The breed may be affected by mitral endocardiosis, pulmonary stenosis and, in some individuals, heart failure.
Eye irritations: Its large, exposed eyes require regular monitoring to limit irritation and quickly spot an abnormality.
Skin conditions: Alopecia, demodicosis and atopic dermatitis are among the skin problems reported in the breed.
Periodontal disease: Tartar, gum inflammation and tooth loosening are major points of vigilance in the breed.
Climate
Tolerance to cold and heat
The Chihuahua tolerates moderate heat fairly well with shade and water, but it is clearly more sensitive to cold, wind and humidity than many other dogs. Winter outings must be adapted to its size, its coat condition and the weather. In summer, strong heat and prolonged effort are avoided, because its small size dehydrates it faster than one might imagine.
Weight
Prone to weight gain
Weight management is essential in the Chihuahua, because a few hundred grams too many are enough to impair its mobility, its kneecaps and its breathing comfort. The ration must be weighed, treats counted and activity maintained every day, even if it remains moderate. In this breed, correcting a slight overweight early is much simpler than catching up with an established excess weight.
Everyday care
Good habits to keep your pet healthy
- Establish a regular dental hygiene routine from the earliest age.
- Prefer a well-fitted harness over repeated pulling on the collar.
- Monitor any intermittent lameness, dry cough, or breathing discomfort.
- Protect the dog from falls, excessive jumping, and pronounced cold.
Vaccination
Chihuahua vaccinations: schedule
Which vaccines does a Chihuahua need? Like all dogs, Chihuahuas should receive their core vaccines from 8 weeks of age: CHPPi (core vaccine) and Leptospirosis. Puppies receive their initial Chihuahua vaccinations in several shots spaced 4 weeks apart, followed by a first booster at 1 year. Depending on their lifestyle (hunting, hiking, boarding, travel, region), your veterinarian may add vaccines against Rabies, Kennel cough, Piroplasmosis, Lyme disease and Leishmaniasis.
| Vaccine | Primary vaccination | First booster | Then | For whom? |
|---|---|---|---|---|
CHPPi (core vaccine)Core Distemper, Rubarth hepatitis, parvovirosis and parainfluenza | 8 weeks · 12 weeks · 3 months | 1 year | every year | All animals |
LeptospirosisCore Leptospirosis (bacterium transmitted by rodent urine and stagnant water) | 8 weeks · 12 weeks | 1 year | every year | All animals |
RabiesDepending on lifestyle Rabies | 12 weeks | 1 year | every year | Mandatory for travel abroad, categorized dogs, most boarding kennels and shows |
Kennel coughDepending on lifestyle Bordetella bronchiseptica and parainfluenza | 8 weeks | 1 year | every year | Dogs attending boarding kennels, daycares, dog clubs and shows |
PiroplasmosisDepending on lifestyle Tick-borne babesiosis | 5 months · 6 months | 1 year | every year | Hunting dogs, dogs living in rural or wooded areas, dogs highly exposed to ticks |
Lyme diseaseDepending on lifestyle Tick-borne borreliosis | 12 weeks · 3 months | 1 year | every year | Hiking dogs, hunting dogs, forest areas of the East and the Center |
LeishmaniasisDepending on lifestyle Leishmaniasis transmitted by sandflies | 6 months | 1 year and 6 months | every year | Dogs living or staying in the South of France, Corsica and the Mediterranean basin |
Adult Chihuahua booster shots are given annually for leptospirosis and rabies. For distemper, hepatitis, and parvovirus, a booster every three years is often enough after the first booster. Your veterinarian will tailor the schedule to your dog's actual risk.
Which boosters does your Chihuahua need?
Enter your companion's age to see which vaccines are due now and when the next boosters are needed.
Choosing well
Adopting a healthy Chihuahua
Before acquisition, it is useful to ask for clear information on cardiac history, patellas and eyes in the line. Regular veterinary follow-up with particular attention paid to the heart, knees, eyes and oral hygiene is particularly important in this breed. Depending on the lines, a veterinarian may recommend targeted check-ups to confirm the absence of hereditary abnormalities.
This information is for guidance only and doesn't replace advice from a veterinarian. If you have any concerns about your pet's health, consult a professional.
