It can be difficult to know the difference between a full-size Yorkshire terrier, or Yorkie, for short, and a "teacup" Yorkie. While some breeders may advertise that they sell "teacup" Yorkies, in actuality, there is not a recognized breed by that name. According to the American Kennel Club, there is only one type of Yorkshire terrier, and that is a toy-sized dog that weighs from 5 to 7 pounds.
Yorkies are small dogs, categorized as toy-sized. They average 6 to 7 inches in height and 5 to 7 pounds in weight. The coat of a Yorkie is long, straight and silky, and grayish-blue and tan in color. Yorkies' noses are black, their eyes are medium-sized and dark in color and they have pointy ears that stand up on their heads. The legs of a Yorkie are straight, and they have rounded paws with black toenails.
"Teacup" Yorkies are actually just small Yorkie dogs, typically those weighing less the 4 pounds, which is not necessarily a desirable trait. Extra-small Yorkies are susceptible to numerous health problems, such as birth defects and injuries. Those considering purchasing a Yorkie should consider this before purchasing a so-called "teacup" Yorkie. Remember that "teacup" Yorkies are not actual breeds of dogs; they are just small Yorkies labeled as such.
Both the full-sized Yorkie and the "teacup" variety of Yorkie are adventurous dogs with a courageous nature. Yorkies are intelligent and energetic, so they need owners who can give them the exercise and attention they require. Yorkies can show aggression toward strangers and other dogs, and due to this aggression, they may not always be suitable choices for families with young children. Due to their small size, owners need to be careful when handling Yorkies as well, so they do not injure them.
Because Yorkies are active, they will need daily walks. No matter the size of the Yorkie, their coats will require some substantial upkeep, such as combing and brushing often, as well as trimming occasionally and possibly tying back the hair on the face so it does not drag in the Yorkie's water or obstruct the Yorkie's vision. It is also recommended to have the Yorkie's teeth cleaned on a regular basis. Regular vet appointments are also important, especially with small "teacup" Yorkies that are prone to many health problems.