الفهرس 
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Abstract
A trial was made to investigate the urological disorders with special reference to the incidence of bilharzial lesions, their clinical presentation, seasonal variation and their relation to age, sex, occupational and residential distribution in Assiut by statistical analysis of patieats visiting Assiut University Hospital during the period of 3 years from 1965 - 1968.
The main goal of this investigation concerned the exploratior of the causes of urinary sepsis in bill arziasis. The normal bacterial flora of urine of clinically healthy individuals comprised staph. (5.2%) kelebsiella (1.3%) and diptheroids (1.3%) the urine of 92.3% of healthy subjects was sterile.
The bacterial flora isolated from the urine of non bilharzial urological cases consisted of staph. (12.4%), proteus (2.85%), pyoyaneus (2.85%), proteus plus st. ph. (2.85%) and diphtheroids (2.85%).
The percentage of urinary sepsis amounted to 49.42% in general among urological bilharzial patients. The predominant organism isolated from bilharzial urological patients, regaedless of the nature of the disease was proteus, followed by staphylococci, then came coliforms, pyocyaneuis and diphtheroids. The least organisms to be isolated were streptoccus feacalis and streptoccus haemolyticus.