As a whole, the whippet breed is EXTREMELY healthy and robust. Their general health is one of the main things that initially drew us to the Breed. Many in the general public have the false belief that any purebred dog is less healthy than a standard mixed breed dog. However, that is simply not the case nor is that how genetics work. First off one of the many benefits of owning a well-bred purebred dog is a careful documentation of their ancestry and kennel's history. This means as a Breeder many of us have met your dog's grand-sires on either or both sides of the pedigree and grand-dam along with their great grand-sires and great grand-dams. We've spent a great deal of time planning our pedigrees, meeting relatives and watching our own bloodlines for the emergence of any undesirable traits either in temperament or general health. So overall, there is a lot less unknowns or surprises when you bring home one of our dogs.
That said, it's important to discuss the general health of the breed with your prospective Breeder so you are informed of what may occur and specifically ask them pointedly what health issues they've personally had to deal with in their program. If they tell you "none" then MOVE ON! That's a big red flag!