The Caucasian Shepherd Dog (Georgian: კავკასიური ნაგაზი; Russian: Кавказская овчарка, romanized: Kavkazskaya ovčarka; Azerbaijani: Qafqaz Çoban iti) is a large livestock guardian dog breed from the Caucasus Mountains, commonly bred in the mountainous regions of Transcaucasia, especially in Georgia. The Caucasian Shepherd Dog is generally healthy and long-lived, averaging a life span of 10–12 years. Some dogs may have health problems in the form of hip dysplasia, obesity and occasional heart disorders, but the majority of these dogs are healthy if taken care of correctly. Good dog-breeders use genetic testing of their breeding stock to reduce the chances of diseases in the puppies. The Georgian Shepherd is a related dog breed. It is muscular and athletic and is divided into two types: the short-haired Kazbegian dog, also known as 'Nagazi', and the long-haired Georgian mountain dog. They are wide-headed, tall, often pure white colored or multi-colored. However, the Georgian Shepherd is not recognized as a standardized breed by any major kennel club.