Chihuahua
The world's smallest breed hails from Mexico and carries an outsized personality. Devoted, alert and surprisingly bold, the Chihuahua bonds fiercely — often to one person. It suits owners who'll socialise it well (to avoid the nervy snappiness of a spoiled 'handbag' dog), handle it gently, and keep it warm, making a great companion for flats and quieter homes.
Chihuahua scorecard
Overview
The Chihuahua is the smallest recognised dog breed in the world, typically weighing between 1 and 3 kg and standing only around 15 to 23 cm tall, yet it carries one of the biggest personalities in the canine world. Named after the Mexican state of Chihuahua, it is an alert, lively and intensely devoted companion that bonds closely, often to one particular person. Both smooth-coated and long-coated varieties exist, and both share the breed's signature apple-domed head, large luminous eyes and upright, expressive ears.
For flat dwellers and those wanting a true portable companion, the Chihuahua has obvious appeal: minimal exercise demands, a tiny footprint and a big heart. But the same small size brings genuine care responsibilities. Chihuahuas can be wary of strangers, surprisingly vocal, and physically fragile, which means they are generally better matched to calm households and older children than to homes with boisterous toddlers. They reward owners who respect their delicacy and invest in early, gentle socialisation.
Good to know — a Chihuahua is flat-friendly and manageable for committed beginners. Every dog is an individual, so meet a few and chat to a good breeder or rescue before deciding.
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History & origins
The Chihuahua's exact origins are not documented with certainty, but the breed is firmly associated with Mexico and takes its name from the northern state of Chihuahua, where examples were noted by visitors in the 19th century. It is widely believed to descend at least in part from a small companion dog kept by indigenous peoples of Central America, often referred to as the Techichi, which was associated with the Toltec and later Aztec cultures.
The modern breed was developed and standardised largely after dogs were brought from Mexico into the United States in the late 1800s, where its popularity grew quickly. Today the Chihuahua exists in two coat types, smooth and long, and is recognised by major kennel clubs worldwide including The Kennel Club in the United Kingdom, where it remains a consistently popular toy breed. Its small size and devoted nature have kept it in fashion as a companion dog for well over a century.
Temperament & family fit
Chihuahuas are bold, spirited and deeply affectionate dogs that form intense bonds with their owners. They are alert and quick to notice anything new, which makes them surprisingly good little watchdogs, and they often show a confidence and self-assurance that seems comically at odds with their size. Many are content to spend much of the day close to their chosen person, and they can be wonderfully loyal, characterful companions.
That devotion can tip into wariness or possessiveness if not managed. Chihuahuas may be suspicious of strangers, can be vocal, and may snap if startled, handled roughly or frightened, which is why the breed is usually recommended for households with older, gentle children rather than toddlers. Without early socialisation and sensible boundaries they can become over-protective or nervous. Owners who avoid 'babying' problem behaviour, and who expose their puppy calmly and positively to a wide range of people, dogs and situations, tend to end up with a confident and delightful adult.
- Families with older, respectful children
- Owners ready for consistent training
- Flats or houses with daily exercise
Training & intelligence
Chihuahuas are intelligent and perfectly capable of learning, but they have a strong independent streak and respond best to patient, reward-based training using treats, praise and play. Because they are so small it is easy to carry them away from situations rather than teaching them how to cope, but allowing a Chihuahua to learn good manners and confidence on its own four feet produces a much happier dog. Consistency matters: a tiny dog quickly learns which household rules can be ignored.
House-training can require patience, partly because of a small bladder and partly because cold or wet weather is genuinely unpleasant for such a little dog, so a reliable routine and indoor options in bad weather help. Socialisation is the priority from the earliest age, gently accustoming the puppy to handling, grooming, visitors and other dogs to head off the wariness and reactivity the breed can otherwise develop.
- Start socialisation & handling early
- Reward-based methods only — no harsh corrections
- Keep sessions short, calm and consistent
Exercise needs
A healthy adult Chihuahua typically needs around an hour a day (roughly 60–80 minutes), split across walks, play and a little training. A good sniffy walk, some play and a little training usually keeps them content. Puppies, seniors and dogs with health conditions need adjusted amounts — check with your vet.
Grooming & coat
Grooming demands depend on coat type but are generally manageable. The smooth-coated Chihuahua needs only occasional brushing to remove loose hair and keep the coat glossy, while the long-coated variety benefits from more regular brushing, perhaps a couple of times a week, to prevent tangles, particularly behind the ears and on the feathering. Both types are relatively low-maintenance compared with many toy breeds. As with all small dogs, routine care should include regular nail trimming, ear checks and, crucially, dental care, since the breed is prone to dental disease. Occasional bathing keeps the coat clean without stripping natural oils.
- Brush occasionally to remove loose hair
- Bathe every few weeks or as needed
- Check ears, nails and teeth weekly
Feeding considerations
Chihuahuas should be fed a complete, good-quality diet suitable for small or toy breeds, carefully portioned to their tiny size. Because they need so few calories, even modest overfeeding or generous treating can quickly cause weight gain, which is hard on small joints and overall health, so weighing food and keeping treats in check is important. Very young Chihuahua puppies can be susceptible to low blood sugar if meals are missed, so frequent small feeds are typically advised in early life. Fresh water should always be available, dietary changes should be made gradually, and your vet can advise on appropriate amounts based on body condition.
Chihuahua health & costs
Before bringing a Chihuahua home it pays to budget for the whole picture — food, insurance, grooming and routine vet care all add up. The figures below are typical UK estimates for a healthy adult; your real costs vary with where you live, your dog's health and the cover you choose.
Food
£200–300 / year
Complete food sized to weight & life stage
Insurance
£12–28 / month
Lifetime cover — varies by age, breed & area
Grooming
£0–60 / year
Mostly DIY at home
Routine vet care
£200–450 / year
Vaccines, flea/worm, annual check
The Chihuahua is generally a long-lived breed, often reaching 14 to 16 years, and many individuals enjoy good health well into old age. Nevertheless, the breed has several characteristic considerations linked to its very small size. Dental disease is common, as crowded teeth in a tiny jaw readily accumulate plaque and tartar, so regular tooth-brushing and veterinary dental care genuinely matter. Their delicate build also means injuries and fractures can occur more easily, so gentle handling and supervision around larger dogs and small children are important.
Prospective owners should seek breeders who health-test and be aware of conditions recognised in the breed. Some Chihuahuas are born with a soft spot in the skull (an open fontanelle, or 'molera'), which should be handled with care. Sensible weight management, good dental hygiene, protection from cold and prompt veterinary attention to any signs of pain, breathing difficulty or collapse all support a long, comfortable life, alongside routine vaccination and parasite control.
Common health conditions to be aware of
- Periodontal (dental) disease — very common in toy breeds with crowded teeth; needs regular brushing and veterinary dental care
- Luxating patella — slipping kneecaps are frequently seen in small and toy breeds and can cause lameness
- Tracheal collapse — weakening of the windpipe causing a honking cough, recognised in toy breeds
- Hydrocephalus — a build-up of fluid within the skull, associated with the breed's domed head and open fontanelle in some dogs
- Open fontanelle (molera) — an incompletely closed soft spot in the skull seen in some Chihuahuas, requiring careful handling
- Hypoglycaemia in puppies — low blood sugar to which very small toy puppies are prone if meals are missed
These reflect typical, size- and coat-related risks for dogs like the Chihuahua; individual breeds carry their own predispositions. Always buy from health-tested parents and speak to your vet — this isn't a diagnosis.
Protect against surprise bills
A single emergency can run into thousands. Lifetime insurance spreads the risk.
Estimate insurance →How pet insurance works →Puppy & senior care
Bringing home a Chihuahua puppy
Puppies need controlled exercise (a rough guide is five minutes per month of age, twice a day) to protect growing joints, little-and-often meals of a complete puppy food, early socialisation, and a calm routine for toilet training and sleep. Book first vaccinations, microchipping and a vet check early.
New puppy checklist →Caring for a senior Chihuahua
As they age, watch weight, joints and teeth, switch to a senior diet if your vet advises, keep exercise gentle but regular, and consider orthopaedic bedding and ramps. Twice-yearly vet checks help catch issues early.
Orthopaedic beds & mobility →Pros & cons
The good bits
- Tiny, portable and minimal exercise needs
- Big-hearted and deeply bonded to its owner
Things to consider
- Fragile and can be snappy if startled — better with older children
- Can be wary of strangers, vocal and prone to dental issues
Chihuahua health & care guides
In-depth, vet-sensible guides written for Chihuahua owners:
Compare the Chihuahua
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Bichon Frise
A cheerful, low-shedding companion that’s a popular choice for allergy-conscious, flat-dwelling owners.
Yorkshire Terrier
A tiny, feisty toy terrier with a big personality — ideal for flats but delicate around small children.
Similar temperament
Chiweenie
A tiny, bold Chihuahua–Dachshund cross that is devoted to its owner and makes a lively companion. Can be vocal and stubborn, and may inherit the Dachshund's long-backed build. Coat and shape vary depending on which parent they take after.
Dachshund
A bold, characterful "sausage dog" that suits smaller homes but needs careful handling of its long back.
Affenpinscher
A tiny, monkey-faced terrier-type toy dog with a big personality. Lively and amusing, but bold and stubborn, so needs patient, consistent training.
Chorkie
A tiny, bold Chihuahua–Yorkshire Terrier cross with a big personality. Devoted to its owner but can be feisty, vocal and wary of strangers. Coat and temperament vary depending on which parent they take after.
Similar size, different type
Maltipoo
A Maltese × Poodle cross — affectionate, playful and usually low-shedding, a popular lap-sized companion.
Yorkipoo
A Yorkie × Poodle cross — tiny, lively and usually low-shedding, well suited to flats and smaller homes.
Shih-Poo
A Shih Tzu × Poodle cross — gentle, affectionate and usually low-shedding, a relaxed companion for flat life.
Chorkie
A tiny, bold Chihuahua–Yorkshire Terrier cross with a big personality. Devoted to its owner but can be feisty, vocal and wary of strangers. Coat and temperament vary depending on which parent they take after.
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Frequently asked questions
How long do Chihuahuas live?
Chihuahuas are one of the longest-lived dog breeds, typically reaching around 12–16 years, and some live even longer. As a tiny breed their lifespan is naturally long, but good dental care, keeping them at a healthy weight, protecting their fragile frame from injury and staying on top of routine vet checks all help yours reach a happy old age.
What health problems are Chihuahuas prone to?
Chihuahuas are prone to dental disease (very common in tiny breeds), patellar luxation (slipping kneecaps), and heart disease such as mitral valve disease in older dogs. Tracheal collapse, low blood sugar (hypoglycaemia) in young puppies, and hydrocephalus linked to a molera (soft spot on the skull) are also seen. Regular dental and vet care reduces their impact.
Are Chihuahuas good family pets?
Chihuahuas can be devoted, lively family companions, but their tiny size makes them fragile. They often suit homes with older, gentle children rather than toddlers, as rough handling or a fall can cause real injury. Well-socialised they're affectionate and confident; without it they can be wary or snappy when frightened. Calm, sensible handling brings out the best in them.
Are Chihuahuas easy to look after?
In many ways yes — they're small, adaptable and need only modest exercise, so they suit flats and less active owners. Smooth coats need little grooming, long coats a bit more. The real care priorities are daily dental attention, protecting their delicate frame, keeping warm in cold weather, and not over-feeding, as tiny dogs gain weight easily.
Do Chihuahuas need a lot of exercise?
No — Chihuahuas have modest exercise needs and are happy with short daily walks plus play at home. Around 30 minutes a day suits most adults, split into shorter outings. They still need mental stimulation and the chance to sniff and explore. Avoid over-exercising puppies, and use a well-fitted harness rather than a collar to protect their delicate windpipe.
Why do Chihuahuas shiver and shake?
Chihuahuas often shiver because they're cold — they have little body fat and a high metabolism, so they lose heat quickly. Excitement, stress or anxiety can also cause trembling. A warm coat or jumper in winter, and a cosy bed away from draughts, helps a lot. If shaking is persistent, unexplained or paired with other signs, ask your vet to check it.
Should I buy a 'teacup' Chihuahua?
Be very cautious. 'Teacup' is a marketing term, not a recognised breed type, used to sell extremely tiny dogs at a premium. Breeding for miniature size is linked to higher risks of fragile bones, heart and breathing problems, hypoglycaemia and hydrocephalus. Welfare-focused buyers should avoid 'teacup' adverts and choose a healthy, normal-sized Chihuahua from a responsible breeder.
Do Chihuahuas have dental problems?
Yes — dental disease is very common in Chihuahuas, as their small mouths crowd the teeth and trap plaque. Left unmanaged it causes pain, bad breath, tooth loss and can affect overall health. Daily tooth brushing with dog toothpaste, vet dental checks and professional cleaning when advised are among the most valuable things you can do for the breed.
Are Chihuahuas good for first-time owners?
They can be, provided owners take socialisation and gentle, consistent handling seriously. Chihuahuas are intelligent and bond closely, but their boldness and fragility mean they need clear, kind boundaries and careful protection from injury and from being 'babied' into anxious behaviour. First-time owners who do their research and avoid 'teacup' adverts often do very well with the breed.
How can I help my Chihuahua live a long, healthy life?
Brush their teeth daily and keep up vet dental care, keep them lean with measured meals, and protect their delicate frame from jumps and rough handling. Use a harness, keep them warm in winter, watch for coughing or exercise intolerance that could signal heart or windpipe issues, and book regular check-ups. Choosing a responsibly bred, normal-sized dog gives the best start.
Are Chihuahuas good with children?
Best with older, calm children. As a general guide, Chihuahuas tend to be better suited to homes with older children or no young children. Whatever the breed, always supervise dogs and young children and teach kids to interact gently.
How much exercise does a Chihuahua need?
As a healthy adult, a typical Chihuahua needs around an hour of exercise a day (60–80 minutes), split across walks plus play. A good sniffy walk plus some play and training usually keeps them happy. Puppies, seniors and dogs with health conditions need less — ask your vet.
Do Chihuahuas shed a lot?
Low shedding. Coat upkeep is easy-care — a quick brush now and then is usually enough.
Are Chihuahuas easy to train and good for first-time owners?
Manageable for committed beginners. Chihuahuas are best for owners ready to commit to consistent training and plenty of activity. Reward-based training and early socialisation help any dog.
Do Chihuahuas bark a lot?
Vocal / alert barker. They can be quite vocal, so early training and enough exercise and stimulation help keep barking in check.
Are Chihuahuas good with other dogs?
Generally fine with other dogs. Early, positive socialisation with other dogs from a young age makes a big difference.
Do Chihuahuas suit flats or smaller homes?
Flat-friendly. A Chihuahua can adapt to flat living as long as it gets its daily exercise and company.
Sources
- The Kennel Club — Chihuahua (Smooth Coat) breed information: https://www.thekennelclub.org.uk/breeds/chihuahua-smooth-coat/
- PDSA — Chihuahua breed guide: https://www.pdsa.org.uk/pet-help-and-advice/looking-after-your-pet/puppies-dogs/small-dogs/chihuahua
- Blue Cross — Dog breeds and health advice: https://www.bluecross.org.uk/advice/dog
- RVC VetCompass Programme — companion animal health research: https://www.rvc.ac.uk/vetcompass
- Fédération Cynologique Internationale (FCI) — Chihuahua standard (No. 218): https://www.fci.be/en/nomenclature/CHIHUAHUA-218.html
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Every dog is an individual — temperament and needs vary. Please research thoroughly, meet dogs in person, and consider adopting from a rescue. This is general guidance, not a substitute for advice from your vet or a qualified trainer.