Esigabeni senhlangano yesambulela esikhulu kunazo zonke se-cynological "Fédération Cynologique Internationale" (FCI), i-Shih Tzu iyingxenye yeqembu lesi-9 "izinja ezingabangane" futhi lapho ziyingxenye 5 "izinhlobo zezinja zase-Tibet".
I-Shih Tzu iyinja encane, ngokwezinga le-FCI, ingafinyelela ubukhulu obufika ku-27 cm futhi ibe nesisindo esingama-8 kg. Idala ukubukeka kwayo okuthambile ngenxa yoboya bayo obude, obuminyene obunamajazi angaphansi amaningi. Iza ngemibala eminingi (futhi i-piebald) futhi izindlebe ezinde ze-floppy ngokuvamile kunzima ukuzibona ngenxa yoboya obuningi.
Ngezansi uzothola ama-tattoos ezinja eziyi-10 ezihamba phambili ze-Shih Tzu: