Some forms of most cancers in Bernese Mountain Dogs Have a very genetic website link, which include histiocytosis and mastocytoma, while other prevalent cancers, like lymphosarcoma and fibrosarcoma, have no genetic hyperlink. For that reason trait, There's a genetic examination with the breed to see if they may have vWD. https://dogstodays.com/1778/bernese-mountain-dogs-dog-breeds-information-details.html