A video of a UK vet naming the 5 breeds of dogs he would never own has gone viral.
The breeds are:
Cavalier King Charles Spaniel - suffers from too many health problems, including a congenital heart defect
Chow Chow - temperament can be unpredictable; suffers from eye problems
Dachshund - tend to have back problems
Shar Pei - skin issues due to their wrinkly coat
Pug/Bull Dog - spinal issues and skin problems
I have found that pure bread dogs almost always have some sort of issue. We loved our German Shepherd, Harp but the poor girl had terrible stomach problems, skin issues associated with food and seasonal allergies, and towards the end, hip dysplasia.