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English Mastiff

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One of the heaviest dogs alive, yet a marshmallow with its family. A Mastiff guards by presence alone โ€” its head is bigger than most threats.

Weight119โ€“220.5 lb (54โ€“100 kg)
Lifespan6โ€“10 years
Energy
Grooming

Temperament

CalmGentleProtectiveDignified

Common health issues

  • Hip dysplasia
  • Bloat (GDV)
  • Dilated cardiomyopathy
  • Obesity

Care at a glance

  • ExerciseLow

    Short strolls and play indoors keep them content.

  • GroomingWash & go

    The occasional brush and bath is plenty.

  • Living spaceNeeds space

    Wants plenty of room indoors and out.

  • Owner experienceSome experience helps

    A little know-how makes life smoother.

  • Commitment6โ€“10 years

    Plan for a long, loving relationship.

Health to watch: Hip dysplasia ยท Bloat (GDV) ยท Dilated cardiomyopathy

๐Ÿ“– Care guide

The English Mastiff is one of the heaviest dogs on Earth, yet a calm, gentle, dignified marshmallow with its family โ€” it guards by sheer presence rather than aggression, and a well-raised Mastiff is famously placid and devoted. Despite the size it is low-energy as an adult, needing only moderate daily walks; but early socialisation and gentle, consistent training are essential while it is still a manageable size, because you cannot muscle a hundred-kilogram dog into behaving. Puppies must not be over-exercised while their huge frames grow. The short coat is easy, but expect drool, and clean the facial folds regularly. Giant breeds carry the hard trade-offs of their size: a short lifespan of six to ten years, and serious health risks. The most urgent is bloat and gastric torsion, a life-threatening emergency, so feed measured meals from a raised bowl, rest after eating, and consider preventive stomach-tacking. Also screen for hip and elbow dysplasia and heart disease, and guard strictly against obesity, which their joints cannot bear. Feed a proper large-breed diet, keep it lean, know the signs of bloat, and an English Mastiff will be a gentle, protective companion for its short, precious life.

Frequently asked questions

  • How much exercise does a English Mastiff need?

    Low. Short strolls and play indoors keep them content.

  • How much grooming does a English Mastiff need?

    Wash & go. The occasional brush and bath is plenty.

  • Is a English Mastiff suited to apartment living?

    Needs space. Wants plenty of room indoors and out.

  • Is a English Mastiff a good fit for first-time owners?

    Some experience helps. A little know-how makes life smoother.

  • How long do English Mastiff live?

    6โ€“10 years. Plan for a long, loving relationship.

  • What health issues affect the English Mastiff?

    Keep an eye out for Hip dysplasia, Bloat (GDV), Dilated cardiomyopathy. These are worth raising with your vet, along with any screening they recommend.

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English Mastiff ยท NetForPet