Helping cats and dogs live their healthiest lives.
Sacred Birman kitten and Yorkshire Terrier adult standing in black and white on a white background
Bullmastiff adult in black and white

Bullmastiff

Bullmastiffs are smaller than Mastiffs but much more imposing than Bulldogs.

About the Bullmastiff

Bullmastiffs are powerfully built dogs, giving an impression of great strength without heaviness. These high-spirited, ever-alert, loyal dogs have a reputation for being tough, active and reliable protectors.

Despite their huge size, they are actually very friendly dogs who make excellent family companions.

Source: key facts and characteristics sourced from Fédération Cynologique Internationale (FCI)

Breed specifics

Group
FCI Group 2, AKC Working Group
Size category
Very large
Avg life expectancy
8–10 years

Intelligent / Alert / Loyal / Protective / Resilient / Lively / Enthusiastic

Key facts

  • Makes a great guard dog
  • Needs an owner with some experience
  • Makes a great family dog

A Bullmastiff's life story

Bullmastiff puppy

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Bullmastiff adult

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Bullmastiff health

Health condition

Bull Mastiffs belong to the brachycephalic family that have as physical features a flat face and short nose due to their flat and wide skull shape. These anatomical attributes can cause some health issues like skin, eye and breathing problems as well as a poor ability to tolerate heat. For all brachycephalic breeds, we advise you to choose a dog with physical features that are not over-exaggerated, to buy from a responsible breeder and to seek counsels from your veterinarian. 

Health checklist illustration

A healthy start to life

Puppyhood is a time of massive physical and behavioural change, and a steep learning curve for new owners. Find out how you can provide your puppy with the best start to life so they develop into strong, healthy dogs. 

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Lifetime of health

Get advice and information on how to provide the best care for your dog at every stage of life.

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