Author's note: The main joint pathologies of the Great Dane were detailed in a previous article on this blog. This profile focuses on the overall profile of the breed, its needs, its lifestyle and the points of vigilance to be aware of before adoption.

The Great Dane impresses even before entering the room.

Its size, noble head, immense stature and reputation as a "giant" make it one of the most fascinating breeds in the canine world.

And for once, the cliché isn't entirely false: the Great Dane can be remarkably gentle, deeply attached to its family, calm at home, often tender to the point of being almost ridiculous as it forgets its own size.

But there's a downside. The Great Dane takes up a huge amount of space in the house, in the budget, in the organization, in daily life... and often in the heart. It's also a breed that doesn't live long, is expensive, and whose fragilities are too often discovered after adoption...

Quick breed profile

The Great Dane is a giant dog, calm, affectionate, very close to its humans, with a moderate energy level but very strong health and logistical constraints. Its main asset is its gentle giant nature. The main "trap" is its health and longevity. It is a dog to which one becomes very attached, and which unfortunately does not stay with us long enough...

3 figures to keep in mind

80 cm minimum

Minimum height at the shoulder for males according to the FCI standard.

35.6 %

Prevalence of dilated cardiomyopathy in the population studied by Stephenson et al., which can be as high as 47% depending on the criteria used.

6 to 7 years

Average lifespan range found in the cited studies, which is brutally and dramatically short.

Origin and standard

The Great Dane descends from ancient Bullenbeisser type dogs and big game hunting dogs, used notably for wild boar hunting. The breed was structured in Germany at the end of the 19th century, despite its nickname "Grand Danois", which has led to lasting confusion.

FCI standard n°235, in its currently valid version, describes a very large dog, powerful but harmonious, noble, proud, without excessive heaviness. It is classified in Group 2, Molossian type dogs, without working trial.

The Great Dane is a very precise canine construction, designed to combine power, stature and elegance. And it is precisely this degree of extreme in the format that explains part of the biological price paid by the breed.

Daily character

The Great Dane is often gentler than the image one has of a dog of its size. It is generally calm indoors, deeply attached to its family, not very exuberant, and not very clumsy in its intentions, even if its body can be due to its sheer volume.

This is a dog that loves to be close. Very close. Even closer.

Many Great Danes act as if they weighed twenty-six pounds (less) and perfectly belonged on laps or across the couch. This fusion-like quality is a big part of the breed's charm.

This proximity has a downside: the Great Dane often tolerates prolonged solitude poorly.

It can become anxious, destructive, or experience significant distress from repeated absences of its humans. And for a dog of this size, boredom can manifest in quite spectacular material ways (a small reference here to the classic: 7 basset hounds for one Great Dane).

Family life and cohabitation

With children in the household, the Great Dane is often gentle, patient, and attentive.

It can be a very good family dog, provided everyone maintains a minimum of lucidity: a dog weighing 70 to 80 kg doesn't need to be aggressive to accidentally knock over, hit, or crush a child.

With other dogs, cohabitation is often possible, especially if socialization has been done well and early. It is not a naturally quarrelsome breed, but its size requires serious management of encounters and balances.

With cats and small animals, as always, early socialization helps enormously.

The essential point here is less the dog's intention than the size difference.

Physical and mental needs

The Great Dane is not a hyperactive dog. In fact, it is often a surprisingly calm dog indoors. But that doesn't mean it needs nothing. It needs regular, structured outings, movement, exploration, and daily mental stimulation.

What suits it best are long walks, quality routines, short educational exercises, scent work, and proprioception.

What is less suitable, especially during growth, are violent exertions, repeated jumps, impact sports, slippery surfaces, and human folly disguised as "he needs to expend energy."

Growth: the absolute critical phase

If there is one point to take extremely seriously, it is this one. The growth of the Great Dane is one of the fastest and most mechanically demanding in the canine world. Its growth plates remain vulnerable for a long time, and its skeleton carries a significant mass very early on.

Concretely, this means:

• diet formulated for growing giant breeds
• strict weight control
• no repeated jumping
• no excessive stairs
• no early impact sports
• no treating a "robust large puppy" like a miniature adult

Health: the part we prefer to avoid before purchase

This is where the breed becomes difficult to look at frankly. The Great Dane is magnificent, often wonderful to live with, but its overall health remains challenging, with an objectively short life expectancy.

- Longevity

This is probably the most important information in the profile. In the available data, the Great Dane appears with an extremely low average life expectancy, around 6 to 7 years depending on the cohorts.

We can beat around the bush, embellish, nuance... but the fundamental truth remains the same: it's a breed with which we form an intense and often far too short relationship.

- Dilated cardiomyopathy

This is the other major issue. DCM is well-documented in the breed, with a very high prevalence in Stephenson et al.'s study. This refers to a major heart condition, potentially familial, with a significant impact on survival once clinical signs are established.

- Gastric Dilatation-Volvulus

The Great Dane is among the breeds at highest risk for GDV. Its deep chest makes it a classic candidate for this absolute emergency. This is the type of problem that can turn a dog's life and a budget upside down in a few hours.

Here, concrete prevention matters:

• divide meals
• avoid exertion after eating
• consider prophylactic gastropexy
• know how to recognize emergency signs

- Osteosarcoma

The Great Dane is also a breed at risk for osteosarcoma. This falls within the broader profile of very large breeds, but it is a point to state clearly. A persistent lameness in an old or mature Great Dane should not be dismissed...

- Dysplasia and Wobbler Syndrome

Like many giant breeds, the Great Dane is affected by hip dysplasia. Wobbler Syndrome, linked to cervical instability or compression, is also among the classic concerns associated with very large and fast-growing dogs.

What this means for an owner

Adopting a Great Dane means accepting several very simple realities:

• its growth will need to be monitored almost as a project in itself
• cardiac risk will need to be anticipated
• the risk of GDV will have to be lived with as a real factor
• it will have to be accepted that any problem costs more at this size
• you also have to accept that the relationship will probably be shorter than you'd like.

Daily Care

The coat is short.

That's almost one of the only simple things. Light brushing, reasonable overall maintenance, moderate shedding.

But around that, everything else is huge:

• bedding
• car
• bowls
• possible crate
• living space
• pulling force
• tail power
• body volume in the house

Real Cost

The true cost of owning a Great Dane is significant. Food, parasite control, weight-adjusted care, anesthesia, imaging, emergencies, surgery, XXL bedding, transport, cardiac screening, locomotor monitoring: everything costs more.

And unlike other smaller breeds, a simple "small problem" is often anything but small financially when the patient weighs so much...

Ethical Framework: The "Gentle Giant" Trap

The Great Dane falls victim to a very human trap: because it is immense and gentle, we want to believe that all it takes is a big heart and a big couch. Except that a gentle giant remains a giant. And a breed whose beauty partly relies on extreme sizes inevitably pays a health price.

Choosing Your Breeder Wisely

For this breed, you should demand:

• hip screening
• cardiac monitoring of breeding stock
• transparency about bloodlines
• serious socialization of puppies
• clear communication about growth, GDV, and the reality of the breed

A breeder who does not seriously screen for heart conditions in Great Danes is not a serious breeder.

Who This Breed Is (and Isn't) For

The Great Dane may be suitable for:

• a stable person or family
• someone available
• a household with space and budget
• someone who accepts an intense, logistical, and possibly short relationship
• people capable of gently and rigorously managing a giant

It is poorly suited for:

• an absent person
• a tight budget
• truly unsuitable housing
• someone attracted solely by size or visual effect
• someone who hasn't anticipated the emotional cost of the breed

Conclusion

The Great Dane is an exceptional dog known for its gentleness, presence, and nobility. But it is also a giant breed with significant health issues, massive logistical requirements, and a short lifespan. One can love it deeply and still speak frankly: it is not a dog to adopt on an aesthetic whim.

The problem is not the Great Dane. The problem is that we still underestimate what living with a giant truly means.

Sources 

1. FCI Standard n°235 (Great Dane), official validity date 21.08.2024, consulted version published on 02.10.2024. [Group 2, Section 2.1, Molossoid, Mastiff type, without working trial; companion, guard and watch dog; official morphology, reference sizes, temperament, breed history.]
2. O'Neill DG et al. (2013). Longevity and mortality of owned dogs in England. The Veterinary Journal, 198, 638-643. PMID 24206631. [VetCompass cohort of 102,609 dogs; median longevity Great Dane: 6.0 years (IQR 4.0-9.0); crossbreeds lived an average of 1.2 years longer than purebred dogs.]
3. Doubek J. et al. Analysis of diseases and life expectancy in giant breeds. Acta Veterinaria Brno. [241 giant breed dogs; Great Dane: shortest life expectancy at 7.05 years among all evaluated breeds.]
4. Stephenson HM et al. (2012). Screening for dilated cardiomyopathy in Great Danes in the United Kingdom. J Vet Intern Med. PMID 22882627. [107 UK Great Danes; DCM prevalence: 35.6% (up to 47% according to revised criteria); probable autosomal dominant hereditary transmission; frequent ventricular arrhythmias in affected subjects.]
5. UFAW. Great Dane: Dilated Cardiomyopathy. Genetic Welfare Problems of Companion Animals. [DCM: one of the most frequently affected breeds; average survival after clinical presentation: 5 weeks in Great Danes; affected dogs to be excluded from breeding.]
6. PMC 9847425. Risk factors for appendicular osteosarcoma in large and giant breed dogs in western Canada. [Odds ratio appendicular osteosarcoma Great Dane vs Labrador: 3.7 (95% CI 1.25-11).]
7. Centrale Canine. LOF Statistics. [735 registrations in 2024, 756 in 2025.]