Boston Terrier health: what owners should know

The short muzzle brings a known risk of breathing difficulties, including narrow nostrils and a long soft palate. Bostons are also predisposed to eye problems such as corneal ulcers and some inherited cataracts, loose kneecaps, deafness and spine malformations. Responsible breeders check parents' eyes, kneecaps and hearing, and increasingly assess airway function before breeding.

Keeping your dog slim, using a harness rather than a collar, and avoiding heat all reduce strain on the airway. See a vet the same day if an eye is suddenly squinted shut, cloudy or weeping, and urgently if your Boston collapses, has blue or gray gums, or cannot settle its breathing after rest.