Mastiff
Courageous, dignified, and good-natured
Courageous, dignified, and good-natured. The Mastiff is one of the largest breeds, known for its calm and loyal temperament.
Breed Statistics
Compatibility Overview
Personality & Temperament
The Mastiff is calm, patient, and deeply loyal to its family. Despite their imposing size, they are generally gentle and affectionate indoors. They tend to be reserved with strangers but are not aggressive without cause. Early socialization is important given their size and protective instincts. Mastiffs are not high-energy dogs and are content with moderate daily exercise. Their short lifespan and significant health costs are important considerations for prospective owners.
Daily Exercise
Low (30–45 min)
Recommended daily activity to keep this breed healthy and happy.
Known Health Conditions
- Hip Dysplasia
- Elbow Dysplasia
- Bloat (Gastric Dilatation-Volvulus)
- Osteosarcoma (Bone Cancer)
- Dilated Cardiomyopathy
- Progressive Retinal Atrophy (PRA)
- Cystinuria
- Hypothyroidism
Want to learn more before deciding?
Our book covers everything you need to know about choosing the right breed for your lifestyle.
