Abstract Background The term big kidney‐little kidney syndrome in cats has been used for many years. but the definitions are not consistent and relevant research is limited. Objective To determine the factors that differ between normal and BKLK cats. as well as to develop models for predicting the 30‐day survival of cats with ureteral obstruction (UO). https://parisnaturalfoodes.shop/product-category/cider-vin/