Bedlington Terrier health: what owners should know

The best-known health issue in the breed is copper toxicosis, an inherited condition in which copper builds up in the liver. A DNA test for the main mutation (COMMD1) has greatly reduced the problem, and responsible breeders test all breeding dogs. Other conditions reported include eye problems such as retinal dysplasia and distichiasis, and kidney issues in some lines.

Before buying, ask to see the COMMD1 result for both parents and a recent eye examination certificate; a breeder who cannot show them is a red flag. Liver trouble can creep in quietly, so arrange a vet visit if your Bedlington becomes unusually tired, goes off its food, vomits repeatedly, drinks far more than normal, or shows a yellow tinge to the gums or the whites of the eyes.