Some of the breed problems are :

Heart Murmurs - get the heart checked at annual vaccination. The Cavalier Club is actively involved in heart research publishing a list of dogs and bitches aged five years and older that are free of Mitral Valve Disease. This assists breeders wishing to improve the health of the breed. Forms are completed by your Vet or Cardiologist, held on a central database and statistics made available to those engaged in researching the problem of heart murmurs in Cavaliers .

Eye Defects - Can only be diagnosed by a veterinary opthalmologist who will certify dogs that have been examined under the KC/BVA Eye Scheme. Cavaliers can suffer from Hereditary Cataract or more likely Multifocal Retinal Dysplasia.

Luxating Patella - This occurs in the back leg and the knee cap slips causing the dog discomfort. The condition is usually surgically correctable.