5. Bulldog
#Bulldog was used 23,199,468 times, making the titular dog the fourth most popular breed on the platform. Bulldogs are highly susceptible to genetic defects through breeding, and research from the UK found that bulldogs are predisposed to develop 24 out of 43 specific genetic disorders. For example, bulldogs are 38.12 times more likely to develop skin fold dermatitis, which is inflammation deep in the wrinkles of a pup’s face that can lead to infections.
