Before buying a puppy check the pedigree. There is a Bouvier pedigree data base called have to  go back to to the early 90's to find the H Litter. These Bouviers are very suspicious of passing on genetic issues such as glaucoma, subaortic stenosis, and cancer. These 2 dogs can be in a pedigree from once to numerous times. I've seen pedigrees with either or both of these dogs over 40 times in one pedigree. The above article was written by a multi Bouvier owner that experienced the heartbreak of losing their treasured Bouviers  to one or more of the illnesses mentioned above.