Some forms of most cancers in Bernese Mountain Dogs have a genetic website link, for example histiocytosis and mastocytoma, when other typical cancers, for instance lymphosarcoma and fibrosarcoma, have no genetic hyperlink. For this reason trait, There's a genetic exam for the breed to discover if they may have vWD. https://dogstodays.com/1778/bernese-mountain-dogs-dog-breeds-information-details.html