Our health testing levels for the Norwich Terrier
We group breeding programs into three levels based on testing depth. Ask your breeder directly which level they meet.
A breeder at the Great level performs all mandatory tests plus 3 additional clinically recommended screenings that reduce risk in this breed.
In addition to mandatory tests:
Brachycephalic obstructive airway syndrome (BOAS)(BOAS)
Atmung
Brachycephalic obstructive airway syndrome (BOAS) is a severe respiratory condition affecting short-muzzled dog breeds, where the physical shortening of the skull leaves insufficient space for the upper airways. This structural compression forces tissues like the soft palate and nasal passages into a restricted area, significantly obstructing the flow of oxygen to the lungs. Over time, the increased effort required to breathe puts chronic strain on the dog's respiratory and cardiovascular systems.
Physisch · Passing: Grade C2 or better
Lens luxation(PLL)
Augen und Sehvermögen
Lens luxation is an inherited eye disorder where the lens slips out of its normal position because the supporting fibers holding it in place weaken or break. When the lens shifts, it can block the natural drainage of fluid within the eye. This blockage causes a rapid, painful buildup of pressure called glaucoma, which can lead to permanent blindness if left untreated.
Augen · Passing: Clear/Carrier
Portosystemic hepatic encephalopathy(PSS)
Stoffwechsel
This is a neurological condition caused by liver dysfunction, typically occurring when abnormal blood vessels bypass the liver. Because the liver cannot filter toxins from the bloodstream, these harmful substances build up and directly affect the brain. This lack of proper filtration leads to central nervous system dysfunction.
Passing: Normal bile acids
These levels are a comparison framework, not an official certification. They help compare breeding programs at a glance.