Kuluhlu lweyona ntlangano inkulu ye-cynological ambrella "Fédération Cynologique Internationale" (FCI), i-Shih Tzu ikwiqela le-9 "izinja ezingamaqabane kunye nezinja" kwaye apho kwicandelo 5 "inzala yezinja zaseTibet".
I-Shih Tzu yinja encinci, ngokomgangatho we-FCI, inokufikelela kubukhulu be-27 cm kunye nobunzima ukuya kwi-8 kg. Ibanga inkangeleko yayo efukufuku ngenxa yoboya bayo obude, obushinyeneyo obuneedyasi ezininzi zangaphantsi. Iza ngemibala emininzi (kunye ne-piebald) kwaye iindlebe ezinde zefloppy zihlala kunzima ukuziqonda ngenxa yobuninzi boboya.
Apha ngezantsi uya kufumana ezona tattoos zili-10 zibalaseleyo zeShih Tzu: