Small dogs presented as gifts returned from the Orient with the traders, and thus began the rise of the Pug in popularity in Europe. The Chinese had often interbred among the three types of dogs they favored, and so many times breeders would find a long haired Pug among a litter of puppies, as well as white spots on the head. The Pug's head is the most unique and readily identifiable feature. The head itself should be round when you look at it from the front. From the side, the face should be flat without too much or too little chin.
Pug eyes are round, dark, expressive and full of life.
Button ears fold over with the fold of the ear level with the top of the skull, and should not hang lower than the corner of the eye. Rose ears appear to be smaller and fold with the inner edge of the ear against the side of the head. The rose ear tends to give the head a smaller, more rounded appearance. Ears must be black all over. Wrinkles on the Pug head should be deep and easy to see because inside the wrinkle the color is darker than outside.