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Pyrenean Mastiff

General Description

Description. The Pyrenean Mastiff is a very large dog, males 77 centimetres (30 in) and females 71 centimetres (28 in) at the withers, although they can be up to 81 centimetres (32 in). They have a heavy white coat with large darker spots.

General Health

The Pyrenean Mastiff is a strong and even-tempered breed. They are not aggressive, but they will defend their “flock” with tenacity if they feel that family or property is threatened. The Pyrenean Mastiff is a generally healthy breed 

Hereditary Illnesses

As a rare dog breed, there is not enough information to identify any specific genetic illnesses known to be prevalent. But as with all giant, deep-chested breeds, they can experience gastric dilatation-volvulus (GDV) and hip dysplasia.

Character and Temperament

This strong, rustic breed is self-reliant and calm. It is even-tempered and docile at home and is protective of children. It is gentle with other dogs as well as other pets and people it knows. However, if challenged, the Pyrenean Mastiff will not hesitate to defend its family or itself from a perceived threat.


No special requirements


The Pyrenean Mastiff does not require a great deal of exercise, but it will become bored and restless without a sufficient amount. Several daily walks will give it the opportunity it needs to check their surroundings and get exercise.


Brushing at least every three days will keep the coat mat-free and fresh. Trim nails to include dewclaws, and trim mats that may appear between the toes. The Pyrenean Mastiff is a double-coated breed, so it does shed twice a year. Beyond those times, it does not typically shed much hair.


The Pyrenean Mastiff is said to have originated within the Aragonese Pyrenees region in Spain. He has descended from ancient livestock guardian dogs that have Mastiffs in their ancestry. The Pyrenean Mastiff is a large mountain breed that has been used as livestock guardians since the 1200s.


Average Dog Size


Average Dog Weight


Average Bitch Size


Average Life Expectancy


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