A French Mastiff Puppy typically lives 5–8 years. Most of what determines whether it gets there is routine care rather than anything dramatic.
Planning for about 6 years
A French Mastiff Puppy is with you for about 6 years. Budget and routine both need to survive that, including the last quarter of it when a medium dog needs more veterinary attention than it did young.
Balancing loyal against territorial
Breeds described as both loyal and territorial need the two managed together rather than separately. With a medium dog that usually means a predictable routine first and training second - the routine is what makes the training stick.
What to watch for in a medium dog
For this size class: weight gain and hip health. None is a reason not to own the breed; all are cheaper to manage early.
What “loyal” means day to day
The French Mastiff Puppy is described as loyal, territorial, vigilant. Of those, loyal is the one that shapes an ordinary day most. It is easy to read as a selling point and harder to live with than the word suggests, because it does not switch off when you are busy.
A breed from Global / Various, living in India
The French Mastiff Puppy was developed in Global / Various. The part that travels badly is rarely temperament - it is the coat and the tolerance for heat. Plan the year around that and most of the rest follows.
Keep the records
Booster schedules run from the original dates, and a new vet asks for the history first.
The annual check
Once a year for an adult dog, and book it before the hot months rather than during them.
