Staffordshire Bull Terriers

Staffordshire Bull Terriers are known to suffer from Hereditary Cataracts (HC) and L-2-hydroxyglutaric aciduria (L2HGA)—a metabolic disorder resulting in behavioural changes and dementia-like symptoms—both of which are detectable via DNA tests.
Distichiasis (commonly known as “double eyelash”) and Persistent Hyperplastic Primary Vitreous (or PHPV)—a condition whereby the blood supply to the ocular lens fails to regress and fibrovascular tissue forms causing hazy vision—both of which are checked by way of an ocular examination throughout the life of a breeding stud or brood-bitch to minimise the transfer and spread of these conditions.
The breed is known to be at a higher risk from mastocytoma (mast cell tumours) than the general population of dogs.
A UK Kennel Club survey puts the median lifespan at 12.75 years. UK vet clinic data puts the median at 10.7 years.