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I believe the importance of this affection to be generally underestimated and am positive that the condition is vastly more common than is generally supposed.
The term bacteriuria implies the presence of bacteria in the urinary tract above the compressor urethræ muscle. Micro-organisms are always present in the normal male urethra, certainly its anterior portion, and may be found in the urine of most people provided it is voided through this structure. Aside, however, from the trivial urethral discharge occasionally provoked by certain of these organisms, their presence in the anterior urethra causes no symptoms. Apart from the bacteriuria, which always exists as a part of pyuria, there is a simple bacteriuria, without pus, or at least such small quantities of this as to be of minor clinical significance. There is this difference regarding the etiology of the two affections: Pyuria always indicates suppuration in some part of the urogenital
LA ROQUE GP. BACTERIURIA.REPORT OF A UNIQUE CASE.. JAMA. 1906;XLVI(24):1838-1839. doi:10.1001/jama.1906.62510510030002e