All information about Pyrenean Mastiff

All information about Pyrenean Mastiff

The Pyrenean Mastiff is a dog that reaches a considerable size and therefore can be imposing. However, we must know that he is actually a protective dog, affable and tender with his own, so it is undoubtedly a breed especially appreciated by those who were lucky enough to live with one of these great mountain dogs. We are talking about dogs that were traditionally shepherds and guardians, who for centuries protected the herds of northern Spain from various dangers. Currently, they have become popular and we can find them in many other regions as companion dogs.

In this knowledge grip guide we will talk in detail about this breed with a big heart. Therefore, we are going to explain all information about Pyrenean Mastiffcharacter, characteristics, education or health, among others. Also, if you are considering adopting one of these dogs, knowing more about them is essential to ensure a good adaptation. Write down.


  • Europe
  • Spain

FCI rating

  • Group II

Physical characteristics

  • Rustic
  • muscular
  • provided


  • Toy
  • Little bit
  • Average
  • Great
  • Giant


  • 15-35
  • 35-45
  • 45-55
  • 55-70
  • 70-80
  • more than 80

adult weight

  • 1-3
  • 3-10
  • 10-25
  • 25-45
  • 45-100

Hope of life

  • 8-10
  • 10-12
  • 12-14
  • 15-20


  • Shy
  • very faithful
  • Still

ideal for

  • Houses
  • Shepherd
  • Surveillance


  • To enjoy

hair type

  • Length
  • Soft
  • thick

Origin of the Pyrenean Mastiff

As the name suggests, this breed is native to the Pyrenees, specifically the Aragonite Pyrenees. Traditionally, this dog was used to tend cattle on the crossings that transhumant herders made in the past. They were great guardians of their flocks, protecting them from wolves, bears and thieves. It is believed that they arrived in our country several centuries ago and that they did so through navigators from the Mediterranean. Their genetic origins show that they come from crosses between mountain dogs and Spanish mastiffs

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During times of hardship and scarcity caused by the Spanish Civil War (and its consequent post-war), the breed was greatly affected, as due to its important proportions it was difficult to keep these dogs. This is why the Pyrenean mastiff has seen a noticeable decline during this time. In 1977 the Mastiff Club of the Pyrenees of Spain, whose objective is to recover this breed so that it can once again have the prominence it deserves. Thanks to this work, today the breed is internationally known.


The Pyrenean Mastiff is considered a giant-sized breed. While females can weigh between 55 and 77 kilograms, males can reach a maximum of 100 kilograms, as well as a height at the withers between 72 and 77 cm . Their body is compact and muscular, with strong and robust limbs, which can fool us into thinking that they are slow and clumsy walking dogs, but nothing further from the truth, as their agility and coordination are truly amazing. A special feature is that many specimens tend to have spurs on their legs, especially their hindquarters.

Its head is large, elongated, and solid in appearance, its snout is straight and triangular, ending in a prominent and voluminous nose, usually black. The eyes are almond-shaped, not too big, expressive, and with flat colors. The ears are triangular in shape, hanging down towards the cheeks and medium in size. The Mastín del Pirineo‘s coat is considerably long, about 3 to 8 inches long approximately, a little longer on certain parts of the body, such as the neck or belly. The fur is dense and thick, which protects the animals from the cold typical of the mountainous areas where they come from.

Mastín del Pirineo character

The most notable characteristics of Pyrenean Mastiff dogs would likely be their nobility and loyalty. Likewise, due to breed selection, we also talk about dogs especially. faithful, courageous and protective. In fact, we must socialize the puppy promptly to avoid developing an overly territorial character, due to his past as a sheepdog and guardian. It will also depend on socialization that they can interact positively with all kinds of people, animals and various environments.

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However, we are also talking about a calm, relaxed and confident dog . He is very trustworthy, especially with family members, whom he will follow, despite showing a relatively independent attitude. However, it should be noted that, due to its large size, it does not always control its forces well, so we must be careful in this regard.

Pyrenean mastiff care

Mastiffs are dogs that have a considerably long coat and need frequent brushing , which is advisable to do daily. Brushing them will prevent dirt from accumulating on your body and also prevent the house from getting furry. But it will also be easier to spot potential flea and/or tick parasites early on, especially if you have access to wooded and grassy areas. It is also advisable to give them a monthly bath to keep their coat clean and soft, always using products specifically for dogs, never for human use.

As for food, it must be complete and balanced, otherwise, as they are especially greedy animals, they can become overweight and obese. Games , exercise and mental stimulation can’t be missed in your daily life.

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The education and training of the Pyrenean Mastiff must begin immediately. As we have already said, during the puppy stage it will be convenient to socialize it with all kinds of people, animals, and environments. Later, we’ll start working on basic dog commands, which include sit, stay still, or lie down, among others. It is essential that they learn obedience in order to respond appropriately and for their caregivers to have good control over the dog. We will always use positive reinforcement, including food rewards at the beginning, which we will progressively replace with caresses and verbal reinforcement. In no case should we use punishment, as the risk of unwanted behavior is high?

Once basic obedience is consolidated, we will continue to stimulate the dog’s mind with exercises, activities, tasks, or canine skills. It is very positive for your mind to prevent the development of cognitive dysfunction syndrome, a kind of “canine Alzheimer’s”. But also, due to its great size and physical resistance, it will be essential to go to an ethologist, educator or canine trainer in case of any behavior problem, especially if it is related to behavior with children, people, or other animals.

Pyrenean Mastiff Health

This Dog is, like other dog breeds, susceptible to suffering from a number of inherited health problems. Probably the most common is hip dysplasia, a disease that prevents proper positioning of the femur in the pelvic bone. This causes a lot of pain to the individual who suffers from it and difficulty walking. Likewise, elbow dysplasia is also common. Other disorders that have a high incidence in the breed are:

  • Wobbler’s Syndrome
  • Coagulation disorders
  • Deafness
  • ectropion
  • entropion
  • osteochondrodysplasic
  • platelet dysfunction
  • Tricuspid valve dysplasia
  • optic nerve hypoplasia

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To prevent as much as possible and quickly detect any of the health problems mentioned above, it will be essential to go to the vet every 6 to 12 months and have a general checkup. We will strictly follow the dog vaccination schedule and periodic deworming. The life expectancy of the Pyrenean Mastiff is short, being between 8 and 12 years .

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