Kuyang'ana Chihuahua, ikhoza kufotokozedwa ngati galu wofulumira kuyenda, ndikuchita bwino, khalidwe lamoyo, lopanda mantha. Amakhala othamanga kwambiri, okonda kufunsa, osatopa, komanso olimba. Mwa kupsa mtima, Chihuahua ndi ochezeka kwa anthu ndi nyama zina, popanda zizindikiro za mkwiyo ndi mantha. Mkwiyo waukali kapena wamantha mopitilira muyeso umawonedwa ngati cholakwa cholepheretsa mtunduwo.
Malingana ndi mtundu wamtundu, mitundu yosiyanasiyana ndi yotheka. Mtundu wa Chihuahua merle ndi wotsutsana komanso wosadziwika padziko lonse lapansi. Zinyama zamtundu uwu zimatha kukhala ndi vuto lakumva ndi kuwona, kuphatikiza kusamva pang'ono, kuwonjezereka kwa intraocular pressure, ametropia (kusokonekera kwa chithunzi pa retina), microphthalmos (kukula kwa diso laling'ono), coloboma (chilema cha ana), matenda a mafupa, zobala, ndi mtima.