Bernese Mountain Dog Guide: Temperament, Health Problems & Care

With their striking tricolor coats, soulful faces and famously gentle nature, Bernese Mountain Dogs are one of the most affectionate large breeds you can bring home. Bred to work Swiss farms, the "Berner" is calm, loyal and wonderful with families — but this is a breed that asks a lot in return, from heavy grooming to careful heat management and, sadly, a short lifespan. Here's an honest, practical guide to the Bernese Mountain Dog's temperament, common health problems, and day-to-day care.

One of four Swiss mountain dog breeds, the Berner was developed to drive cattle, pull carts and guard farms in the cold Alpine climate. That heritage explains almost everything about the modern dog — the strength, the calm working temperament, and above all the dense weatherproof coat that makes hot climates such a challenge.

Bernese Mountain Dog at a glance

• Size: Large to giant — 70–115 lb (32–52 kg), about 23–28 inches tall
• Lifespan: 7–10 years
• Energy: Moderate — daily walks and play, then plenty of rest
• Grooming: High — thick tricolor double coat, a heavy shedder
• Good for: Families with space, cooler climates, patient owners

Temperament: what Berners are really like

Bernese Mountain Dogs are gentle, calm and good-natured — the classic gentle giant. They bond deeply with their families, are typically excellent with children, and want nothing more than to be included in everything. Berners are sensitive dogs who respond best to patient, kind, positive training, and they can be a little shy or reserved with strangers until they warm up. Because they crave closeness, they don't do well left alone for long. Their size and calm demeanour make them a lovely family companion, provided you have the space and the climate to keep them comfortable. Because they mature into such large dogs, early, gentle training and socialisation are important while they're still manageable puppies — a confident, well-mannered Berner is a joy, while a nervous, untrained one is a lot of dog to handle. They tend to be gentle with children, though their sheer size means supervision around toddlers is always sensible. For another big, family-loving breed, see our Great Dane guide or our Golden Retriever guide.

Common Bernese Mountain Dog health problems

Cancer

Sadly, the breed has a notably high cancer rate, including histiocytic sarcoma. This is the leading reason for their short lifespan. Regular vet checks and prompt attention to any new lump, swelling or unexplained decline are important.

Hip and elbow dysplasia

Joint malformations are common in large, heavy dogs and can lead to arthritis. A supportive large orthopedic bed, joint support and keeping your Berner lean all help protect those joints for the long term.

Bloat and GDV

Like other deep-chested breeds, Berners are at risk of bloat and gastric dilatation-volvulus, a true emergency. Feed smaller meals, avoid hard exercise right after eating, and get to a vet immediately for a swollen, painful belly or unproductive retching.

Degenerative myelopathy and arthritis

This progressive spinal cord disease can cause hind-limb weakness in older dogs, and arthritis is common with age. Joint care and gentle, consistent exercise support mobility.

Von Willebrand's disease

An inherited bleeding disorder that affects clotting; responsible breeders screen for it, and it's worth flagging to your vet before any surgery.

Given the breed's health profile, choosing a puppy from a breeder who health-tests for hips, elbows and von Willebrand's — and who is open about longevity in their lines — is one of the most meaningful decisions a future Berner owner can make.

Caring for a Bernese Mountain Dog

Exercise

Berners enjoy daily walks and play but aren't endurance athletes. Crucially, exercise them in the cooler parts of the day — their thick coat means they overheat fast, so watch for the signs of dangerous panting and always offer shade, water and cooling gear.

Diet

Feed a quality large-breed diet, split into smaller meals to reduce bloat risk, and keep your Berner lean to spare the joints. Controlled growth as a puppy protects developing bones.

Grooming

That gorgeous double coat sheds heavily, so plan on regular brushing and deshedding to manage the fur and keep the skin healthy. A good deshedding and grooming kit is close to essential kit for a Berner, and you should expect fur on your floors and clothes year-round, with two heavier seasonal moults. Focus on the feathering behind the ears and legs and the dense undercoat around the neck and hindquarters, where mats form, and never shave the coat, which protects the skin and helps regulate temperature.

Frequently asked questions

Are Bernese Mountain Dogs good pets?

For the right home, absolutely — they're gentle, calm and wonderful with families. Just plan for heavy shedding, heat sensitivity, and their sadly short lifespan.

How long do Bernese Mountain Dogs live?

Usually 7–10 years, which is short for a dog, largely because of the breed's high cancer rate. Regular vet checks and joint support help maximise their quality of life.

Do Bernese Mountain Dogs get too hot?

Yes. Their thick coat is built for cold mountains, so they overheat easily. Keep them cool with shade, water and cooling gear, and exercise them in cooler hours.

This guide is educational and not a substitute for professional veterinary care. Always consult your vet about your individual dog.