Though hip dysplasia can be hereditary, being overweight can greatly increase, and sometimes even cause, this very destructive disease. (all-about-goldens.com)
Septoria is the most destructive disease affecting wheat in the UK. (sciencedaily.com)
Dog mange, which is caused by one of three microscopic mites, is an unfortunate and physically destructive disease that can take over your dog's body if left untreated. (organic-pet-digest.com)