Hi, Thanks for writing in. A single kidney urinary tract infection has always been difficult to treat because of its particular clinical, therapeutical and evolutive aspects. There is no specific pathology related to single kidney, but an increase in the incidence of the ordinary pathology is obvious. It is generally accepted that the urinary tract infection (UTI) is the most frequent morbid association in a person with single. In conclusion, latest medical literature says that we can note that UTI is frequently associated to single kidney and accelerates its evolution toward chronic renal failure. For this reason treatment under close supervision after admission to the hospital is essential.