Since any cat that met the American Shorthair breed standard could originally be registered as a pedigreed American Shorthair, the breed did not suffer from the inbreeding that caused so many hereditary health conditions in other breeds. Of course, as the breed developed, unpedigreed cats could no longer be registered just because they resembled the American Shorthair.
mula sino man pusa atipan ng pawid met ang america iklilat mag-anak sukatan could orihinal maaari magpatala gaya a pedigreed america iklilat, ang mag-anak did hindi mag-tiis sa ang inbreeding atipan ng pawid magbigay pagayon marami namamana kalusugan ilagay sa kondisyon di iba mag-anak. ng paraanin, gaya ang mag-anak linangin, unpedigreed ketsap could hindi longer maaari magpatala makatarungan sapagka't sila makamukha ang america iklilat.