Statistics from the Orthopedic Foundation for Animals indicate that of the 467 Bulldogs tested between 1979 and 2009 (30 years), 73.9% were affected by hip dysplasia, the highest amongst all breeds [REF].
Over 80% of Bulldog litters are delivered by Caesarean section[REF] because their characteristically large heads can become lodged in the mother's birth canal.