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The urinary microbiota

The recent discovery of the urinary microbiota has opened a completely new field of scientific research.
Some urinary diseases may be caused by imbalance in this microbiota.

Less studied than the intestinal microbiota, the urinary microbiota is indeed less well-known: all we really know is that it is less rich and less varied. It is composed primarily of lactobacilli and, to a lesser extent, the bacterial groups Streptococcus, Staphylococcus, Corynebacteria, and Gardnerella. The role of these bacteria and the factors that influence their presence are not yet known and need to be studied.
Recent work has cast doubt on the idea that the urinary bladder is a sterile environment, and that urinary infections are related to bacteria of intestinal origin.
It now seems that imbalance in the bacterial population that comprises the urinary microbiota (dysbiosis) may be responsible, particularly in the onset of urinary infections or in some urinary tract or prostate diseases.
Studies currently being conducted on the urinary microbiota may lead to new methods of preventing or treating urinary problems.

Sources :
Brubaker L , Wolfe A. The female uriniary microbiota, urinary health and common urinary disorders. Annals of Translational Medicine 2017 ; 5(2):34
Amarenco G. Microbiote urinaire et troubles mictionnels. Progrès en urologie 2015 ; 25, 615-627.


Affecting the microbiota

There are 2 ways to affect the equilibrium of microbiotas. Each of them has its own specific features.