Bacteriuria

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Classification according to ICD-10
N39.0 Urinary tract infection, location unspecified
ICD-10 online (WHO version 2019)

As bacteriuria in which is medicine the elimination of bacteria with the urine , respectively. Bacteriuria is a possible indication of a urinary tract infection . The limit value above which bacteriuria is considered to be evidence of a urinary tract infection is not uniformly defined either in the scientific literature or in the practice of microbiological laboratories. After the US physician Edward H. Kass is true that in the newly refurbished midstream urine a germ count of 10 5 and more, per ml of urine indication of significant bacteriuria.

Usually, the urine made by the kidneys is a germ-free (sterile) liquid. In women in particular, however, bacteria can ascend through the short and straight urethra into the urinary bladder and multiply there in a warm and nutrient-rich environment. Only when the immune system reacts to the intruders and tries to eliminate them does an inflammation develop with symptoms of a urinary tract infection such as fever , painful urination and frequent urination . Since asymptomatic bacteriuria does not yet have a serious infection, it only needs to be treated in pregnant women (risk of acute pyelonephritis 25–50%) and before urological interventions.

Older literature

Joachim Frey : Diseases of the kidneys, the water and salt balance, the urinary tract and the male genital organs. In: Ludwig Heilmeyer (ed.): Textbook of internal medicine. Springer-Verlag, Berlin / Göttingen / Heidelberg 1955; 2nd edition, ibid. 1961, pp. 893-996, here: p. 913.

Web links

Wiktionary: bacteriuria  - meaning explanations, word origin, synonyms, translations

Individual evidence

  1. G. Schmiemann, E. Kniehl, F. Gebhardt, M. Matejczyk, E. Hummers-Pradier: Diagnosis of urinary tract infection. In: Deutsches Ärzteblatt. 21/2010, p. 361.
  2. Gerd Herold and colleagues: Internal Medicine 2020. Self-published, Cologne 2020, ISBN 978-3-9814660-9-6 , p. 620.