The male should appear more massive throughout than the female, with larger frame and heavier bone. In the ratio between length and height, the Great Dane should be square. In females, a somewhat longer body is permissible, providing she is well proportioned to her height. Coarseness or lack of substance are equally undesirable. The male shall not be less than 30 inches (76 cm) at the shoulders, but it is preferable that he be 32 inches (81 cm) or more, providing he is well proportioned to his height. The female shall not be less than 28 inches (71 cm) at the shoulders, but it is preferable that she be 30 inches (76 cm), providing she is well proportioned to her height.
The Great Dane's large and imposing appearance belies its friendly nature; the breed is often referred to as a gentle giant. Great Danes are generally well-disposed toward other dogs, other non-canine pets and humans. As with all dogs, they should be supervised around young children. Great Danes can be protective and make good guard dogs. Some Great Danes — as with any breed — can have dominance issues, can be aggressive with other dogs, or chase small animals; however, this is not typical.
Health:
Not a long lived breed. Be careful to buy from a conscientious breeder, as some very poor specimens are being sold to the unsuspecting public. Beware of hip dysplasia; buy only from OFA certified stock. Also prone to bloat, tumors, heart disease, and tail injuries. Do not jog with this dog until it is at least one year old.
The average life of Great Dane's is under 10 years, however some can live to be 12-13 years old.
HealthWatch: Great Danes have some health problems that are common to large breeds. Bloat (a painful distending and twisting of the stomach) is a rare but critical condition that affects Great Danes and results rapidly in death if not quickly addressed. It is a commonly recommended practice for Great Danes to have their stomachs tacked (Gastropexy) to the interior rib lining during routine surgery such as spaying and neutering if the dog or its relatives have a history of bloat. Another problem common to the breed is in the hips (hip dysplasia). Typically an x-ray of the parents can certify whether their hips are healthy and can serve as a guideline for whether the animals should be bred and are likely to have healthy pups.
Dilated cardiomyopathy (DCM) and many congenital heart diseases are also commonly found in the Great Dane. Also, some Danes may develop yeast infections, when not fed all needed nutritional requirements. The yeast infection may also lead to minor recurring staph infection(s).
Great Danes also suffer from several genetic disorders that are specific to the breed. For example, if a Great Dane lacks color (not white) near its eyes or ears then that organ does not develop and usually, the dog will be either blind or deaf.