Some diseases in dogs are viral, parasitic, contagious, or even fatal. Hip dysplasia is a malformation of the hip.
Urinary incontinence is sometimes a symptom of a more serious illness. Leptospirosis is a disease that affects mammals, it is very common in dogs. Parvovirus is a serious, potentially fatal viral disease that primarily affects unvaccinated puppies and dogs. The virus is transmitted by oral-nasal contact from one dog to another.