French Bulldogs are a man-made breed, as all purebred dogs are, and they can have unique health issues even if bought from a breeder who thoroughly health tests. While ethical and responsible breeders breed to improve the health of our beloved Frenchies, there are still physical traits that any potential French Bulldog owner must be aware of and take into consideration.
French Bulldogs are a dwarf breed, starting as bulldogs bred down over centuries from Mastiffs. In fact, they are a Mastiff, or Molloser breed, in a small sturdy package. Dwarfism can cause structural issues, both positive and potentially negative. Thick, sturdy bone is a big plus for the breed; back and some join problems (hips, patellas [knee caps]) are notable negatives.
Flat faces and very short noses = brachycephalic syndrome.
This is why Frenchies snuffle, snort and snore. One has to be careful with overheating with all brachycephalic breeds as they can overheat easily.
Because of their man-made structure, in that they have been bred to have large heads and narrow hips, French Bulldogs normally cannot deliver puppies without a caesarian section.
It is strongly recommended only people with the knowledge and experience to deal with these medical veterinary needs and an excellent Brachycephalic experienced veterinarian undertake breeding Frenchies.
Like many breeds, Frenchies can have allergies.
Studies have shown that only 5-15% of allergies may be caused by food; the majority are caused by their environment. Although Frenchies are not the most allergic breed (surprisingly Labrador Retrievers hold that distinction), they can be allergic to pollen and even grass! Please consult with your veterinarian if your French Bulldog shows any signs of allergies.