Bernese Mountain Dog

The Bernese Mountain Dog is the gentle, enthusiastic giant that thrives on being part of the family, though living well with one means managing their heavy shedding and keeping them cool. This guide sticks to daily life: house-training their extended puppy phase, walking safely as they grow, the temperament to expect, and the health checks worth knowing.

Giant size32–52 kgmale32–52 kgfemale7–10 yrs lifespan
Coloured-pencil illustration of a Bernese Mountain Dog

Daily-care planners

House-training

Moderate to house-train

Berners are gentle and willing, but their extended puppy phase (up to 18 months for giant breeds) means accidents can appear later than expected. Patience through that window pays off.

Most reliable by 5–8 months
Open the potty planner

Walks

Moderate exercise needs

Berners love cool weather and can be excellent hiking companions in mild or cold conditions. They overheat in summer — schedule walks for early morning or evening in warm months and watch for panting as a rest cue. Their large frame means joint care matters during the growth phase; avoid high-impact terrain as puppies. In the right conditions they're enthusiastic, enduring walkers.

Plan walks

Temperament

Berners are eager to please and deeply attached to their people, offering a gentle, willing temperament that matches their impressive size. Because they grow rapidly but mature slowly, guiding their extended puppy phase takes patience.

They don't require relentless running, but need moderate daily physical and mental activity to be settled housemates. Their heavy double coat and low heat tolerance demand a cool environment, and their giant frame is better suited to a spacious home than a cramped apartment.

Their enthusiastic nature makes them deeply affectionate, but their sheer size requires supervision around young children to prevent accidental bumps. They bond closely with family and can struggle with isolation, thriving best in households providing steady companionship and gentle training.

Thanks to a low prey drive and a naturally social attitude toward other dogs, they usually integrate peacefully into multi-pet homes. Supervised introductions help them learn to share space respectfully with cats and smaller pets.

Bred as drafting and farm dogs in the Swiss Alps, their sturdy build makes them natural companions for crisp weather and winter activities. While they love having a gentle job on cool hikes, owners must actively prevent overheating during warm summer months.

What life with a Bernese Mountain Dog asks of you

Grooming & coat

Grooming effort
High grooming
Shedding
Heavy shedding
Coat
Long coat

Exercise & enrichment

Daily exercise
Moderate exercise needs
Mental stimulation
Moderate mental stimulation
Trainability
Eager to please

Temperament & sociability

With people
Enthusiastically friendly
With dogs
Sociable with other dogs
With kids
Good with considerate children (supervise)
Barking / noise
Moderately vocal
Chase instinct
Low prey drive
Time alone
Moderate separation-anxiety risk

Home & climate fit

Hot weather
Low heat tolerance
House-training
Moderate to house-train

Health & screening

General information, not veterinary advice. Predisposition ≠ diagnosis. Always consult your veterinarian. Each claim is sourced below.
Hip dysplasiahigh-confidence
Recommended screening: OFA hip evaluation · PennHIP evaluation
Choosing a puppy from OFA or PennHIP-screened parents and keeping your dog lean supports comfortable joints for life.
Elbow dysplasiahigh-confidence
Recommended screening: OFA elbow evaluation
Screened breeding lines plus steady, low-impact exercise help protect the elbows as your dog grows.
Histiocytic sarcomahigh-confidence
Recommended screening:
No genetic screen exists yet, so regular veterinary check-ups and knowing your dog's normal help you notice changes early.
Degenerative myelopathymoderate-confidence
Recommended screening: Degenerative myelopathy (SOD1) DNA test
A simple DNA test lets breeders plan pairings and lets owners prepare for mobility-supported care if needed.
Von Willebrand diseasemoderate-confidence
Recommended screening: Von Willebrand disease DNA test
Knowing your dog's clotting status ahead of any surgery lets your vet plan safely.