A total of 53 female balady cows was included in this study. Animals were classified into 3 groups, group A (with a history of dystocia), group B (in early pregnancy) and group C (control healthy). Bacteriological examination of urine samples collected from group A and group B revealed that 90.9% and 62.5% of samples harboured different types of micro organisms respectively; such organisms were not detected in members of group C. Semi-quantitative chemical analysis of urine samples of group A showed that the incidence of albumin, blood, pus cells and casts were
,100%
81.82% ,
90.99
با and 90.9% FEspectively. The incidence of these
elements were 62.5%, 56.25%, 62.5% and 39.38% respectively in the urine samples of group B while they were totally absent in samples of healthy animals of group C. Biochemical analysis of blood from cows of group A and B revealed a marked increase in urea nitrogen, serum creatinine and magnesium level with a marked decrease in calcium level in contrast to those of group C. From this work, it is quite evident that urinary tract infections by potentially pathogenic micro-organisms were much more common among cows with dystacia, therefore, hyiegenic precautions must be taken during dystocia to prevent or at least to decrease urinary tract infection.