The Shih Tzu was developed in China as a palace companion, from small Tibetan dogs presented to the imperial court, and its name means "lion" in Mandarin. It's a sturdy toy dog, usually 9 to 16 pounds, with a short square muzzle, large dark eyes and a long double coat in almost any color.
Most Shih Tzus are friendly, outgoing and happiest close to their people, and they usually get along with guests and other pets. Care centers on the coat, which mats without frequent brushing or a regular trim, and on the eyes, teeth and breathing of a flat-faced dog. In Midland that last part means planning around heat and blowing dust. Every dog varies, so judge the dog in front of you, not just the breed.